Tag Archive for: Overactive Bladder

Parkinson’s Disease and the Bladder: When the Brain–Bladder Signal Misbehaves

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Parkinson’s disease is best known for tremor, stiffness and slowed movement, but it can also affect many automatic body functions: including bladder control. Urinary symptoms may disturb sleep, restrict social activities and increase the risk of falls when someone rushes to the toilet.

The reassuring message is that bladder symptoms can usually be improved. The important first step is to identify what the bladder is doing, because not every urinary problem in a person with Parkinson’s is caused by Parkinson’s itself.

How does Parkinson’s affect the bladder?

The bladder normally stores urine quietly and empties only when the brain decides that the time and place are appropriate. Dopamine-dependent circuits in the brain help suppress unwanted bladder contractions during filling.

Parkinson’s can weaken this “hold on” signal. The bladder muscle may contract before it is full, a condition called detrusor overactivity. This produces the familiar overactive-bladder symptoms of urgency, frequency and urge incontinence.

This is a form of neurogenic lower urinary tract dysfunction; bladder or sphincter function altered by disease of the nervous system. However, Parkinson’s does not create one single bladder pattern. Age-related bladder changes, prostate enlargement, pelvic-floor problems, constipation, diabetes, mobility limitations and medications may all contribute.

Common urinary symptoms

People may experience:

  • a sudden, difficult-to-defer need to pass urine;
  • frequent urination during the day;
  • waking several times at night to urinate (nocturia);
  • leakage before reaching the toilet (urge incontinence);
  • bedwetting;
  • hesitancy, a slow stream or straining;
  • a feeling that the bladder has not emptied; or
  • recurrent urinary infections.

Some apparent bladder leakage is partly functional: the person recognises the urge but rigidity, slow movement, poor balance or difficulty managing clothing prevents timely access to the toilet.

Difficulty emptying can occur, but substantial urinary retention is less typical of uncomplicated Parkinson’s disease. It may indicate prostate or urethral obstruction, an underactive bladder, medication effects, severe constipation, pelvic-organ prolapse, or another neurological disorder. Prominent retention, erectile dysfunction or severe postural blood-pressure problems early in a parkinsonian illness may warrant neurological review for conditions such as multiple system atrophy.

How is the bladder evaluated?

A careful assessment is more useful than assuming that every symptom is “just the Parkinson’s”. It may include:

  1. History and medication review: urinary symptoms, fluid intake, bowel function, mobility, cognition, falls and all prescribed and non-prescribed medicines.
  2. Bladder diary: usually recording drinks, voided volumes, urgency and leakage for three days. This is particularly helpful for nocturia.
  3. Examination: abdominal, neurological and, when appropriate, prostate or pelvic assessment.
  4. Urine test: to look for infection or blood.
  5. Post-void residual measurement: a bladder ultrasound after urination shows whether emptying is adequate.
  6. Uroflowmetry: measures the strength and pattern of the urinary stream.
  7. Further tests when indicated: renal function, ultrasound, cystoscopy or prostate assessment according to the clinical findings.

Blood in the urine, pain, fever, recurrent infection or a sudden major change in bladder function needs separate investigation and should not automatically be attributed to Parkinson’s.

Are urodynamic studies always necessary?

No. A patient with straightforward urgency and urge leakage, a normal urine test and a low residual volume can often begin conservative treatment without invasive testing.

Urodynamics may be particularly useful when:

  • symptoms and initial test results do not agree;
  • there is a high or rising post-void residual;
  • weak flow, retention or obstruction is suspected;
  • symptoms persist despite appropriate treatment;
  • the diagnosis is uncertain, for example, overactivity versus poor bladder contraction;
  • previous prostate, bladder or continence surgery complicates the picture; or
  • Botox or another invasive treatment is being considered and the result would alter management.

During urodynamics, thin catheters measure bladder and abdominal pressure while the bladder fills and empties. The test may demonstrate detrusor overactivity, impaired contraction, obstruction or, less commonly, unsafe storage pressure. It should answer a specific clinical question not simply be performed because Parkinson’s is present.

First steps: practical and behavioural treatment

Management should be individualised and, where helpful, involve the urologist, neurologist, Parkinson’s nurse, continence physiotherapist, occupational therapist and carer.

Useful measures include:

  • treating urinary infection and constipation;
  • reviewing diuretics and other medicines with the prescribing doctor;
  • spreading fluid intake through the day while avoiding dehydration;
  • reducing late-evening fluids, caffeine and alcohol when nocturia is troublesome;
  • timed or prompted voiding;
  • bladder training when cognition and mobility permit;
  • pelvic-floor physiotherapy where appropriate;
  • improving toilet access, lighting, clothing and mobility aids; and
  • using a bedside urinal or commode when falls are a concern.

Nocturia is not always caused solely by an overactive bladder. Leg swelling, sleep apnoea, excessive urine production overnight and disturbed sleep may require different treatment.

Medication options

Antimuscarinic medicines

Medicines such as solifenacin, darifenacin, tolterodine, fesoterodine, oxybutynin or trospium can reduce involuntary bladder contractions. They may improve urgency, frequency and urge leakage.

The trade-off is important in Parkinson’s disease. Anticholinergic burden may worsen dry mouth, constipation, blurred vision, urinary retention, confusion or memory. Older people, those with cognitive impairment, glaucoma or poor bladder emptying need particular caution. Oxybutynin can be especially troublesome cognitively in susceptible patients. Drug choice should consider the person’s complete medication list and residual urine.

Beta-3 agonists

Mirabegron relaxes the bladder during filling without adding the same anticholinergic burden and has shown benefit in people with Parkinson’s and overactive-bladder symptoms. Blood pressure should be checked because it can rise, and interactions and cardiac history should be reviewed. Vibegron is another beta-3 agonist available for overactive bladder in Australia; Parkinson-specific evidence is more limited.

Combination treatment may be considered in selected patients when one medicine provides incomplete relief, with monitoring of blood pressure, side effects and bladder emptying.

If emptying is the main problem

Treatment depends on the cause. Prostate medication or surgery will help only if genuine bladder-outlet obstruction is present. An alpha-blocker may worsen dizziness or postural hypotension, already common in Parkinson’s. If significant residual urine persists, clean intermittent self-catheterisation, performed by the patient or a carer where feasible, is generally preferable to a long-term urethral catheter. A suprapubic catheter may be considered when intermittent catheterisation is not practical.

Botox injections into the bladder

Botulinum toxin A (Botox) can be effective for troublesome detrusor overactivity or overactive-bladder symptoms that have not responded to, or cannot tolerate, tablets. It is injected through a cystoscope into multiple areas of the bladder wall, usually as a day procedure.

Benefits may include fewer urgency episodes, fewer leaks and better sleep and quality of life. The effect is temporary, commonly lasting several months, so repeat treatment may be required.

Important risks include:

  • urinary infection;
  • blood in the urine or short-lived discomfort;
  • incomplete bladder emptying or urinary retention; and
  • the possible need for temporary or occasionally ongoing intermittent catheterisation.

Before treatment, the patient’s hand function, cognition and support network matter: could the patient or carer perform catheterisation if retention occurred? Measuring residual urine before and after treatment is essential. Urodynamics is often helpful if the underlying bladder behaviour or emptying ability is uncertain, although it is not mandatory in every otherwise clear case.

Can sacral neuromodulation be used in Parkinson’s disease?

Yes, in carefully selected patients. Sacral neuromodulation (SNM) sends mild electrical impulses to the sacral nerves involved in bladder control. It can be considered for refractory urgency, frequency, urge incontinence and, in selected circumstances, non-obstructive urinary retention.

Treatment begins with a test or staged phase. A temporary or tined lead is used to assess whether symptoms improve meaningfully, commonly by at least 50%, before a permanent battery is implanted. This trial is particularly valuable because Parkinson’s symptoms and bladder patterns differ between patients.

Small observational studies and systematic reviews suggest that some people with Parkinson’s achieve worthwhile improvement. However, the Parkinson-specific evidence is less extensive than the evidence for non-neurogenic overactive bladder, and response cannot be guaranteed.

Points to consider include:

  • confirming that infection, obstruction and severe retention have been addressed;
  • whether symptoms are likely to be modulated by SNM;
  • the person’s ability, or carer support, to operate and attend follow-up for the device;
  • falls, mobility and future disease progression;
  • possible lead movement, pain, infection, device revision or battery replacement; and
  • future MRI requirements. Modern systems may be MRI-conditional, but the exact device and scanning conditions must always be checked.

SNM is therefore not automatically excluded because a person has Parkinson’s. It is best considered through shared decision-making after appropriate evaluation and failure or intolerance of simpler measures.

Botox or sacral neuromodulation?

Feature Bladder Botox Sacral neuromodulation
How it works Temporarily reduces bladder-muscle overactivity Modulates sacral nerve signalling
Treatment pathway Cystoscopic injections, repeated when effect wears off Test phase followed by an implant if successful
Main advantage No permanent implant; established effect on detrusor overactivity Testable before permanent implantation; no routine bladder injections
Main limitation UTI and retention; intermittent catheterisation may be required Implant surgery, programming, revisions and battery management
Parkinson-specific evidence Supportive but based mainly on relatively small studies Promising but still limited; careful selection is essential
Particularly important question Could the patient or carer catheterise if necessary? Can the patient manage the device and follow-up as Parkinson’s progresses?

Neither option is universally “better”. The choice depends on bladder-emptying ability, infection history, dexterity, cognition, mobility, MRI needs, willingness to have repeat procedures or an implant, and the individual’s priorities.

When should you seek prompt medical attention?

Contact a doctor urgently for inability to pass urine, fever with urinary symptoms, flank pain, visible blood in the urine or a sudden neurological or bladder deterioration. New persistent incontinence also deserves assessment rather than simply adding pads.

The take-home message

Bladder symptoms are common and often overlooked in Parkinson’s disease. Urgency, frequency, nocturia and urge leakage are the usual pattern, but obstruction and poor emptying must not be missed. Most patients do not require urodynamics at the outset; it becomes valuable when the diagnosis is uncertain, emptying is impaired, treatment has failed or an invasive procedure is being planned.

Treatment progresses from practical measures and medication to Botox or sacral neuromodulation in suitable patients. The best plan balances symptom control with cognition, blood pressure, constipation, mobility, manual dexterity and the likely course of Parkinson’s disease.

Patient information: This article provides general education and is not a substitute for an individual medical assessment. Do not stop Parkinson’s, blood-pressure or bladder medication without discussing it with your treating doctor.

References and further reading

  1. European Association of Urology. EAU Guidelines on Neuro-Urology. 2026.
  2. Ginsberg DA, et al. AUA/SUFU Guideline on Adult Neurogenic Lower Urinary Tract Dysfunction. J Urol. 2021; amendment 2024.
  3. Li FF, et al. Prevalence of lower urinary tract symptoms, urinary incontinence and retention in Parkinson’s disease: a systematic review and meta-analysis. Front Aging Neurosci. 2022;14:977572.
  4. Sakakibara R, et al. A guideline for the management of bladder dysfunction in Parkinson’s disease and other gait disorders. Neurourol Urodyn. 2016;35:551–563.
  5. Cho SY, et al. Mirabegron for treatment of overactive bladder symptoms in patients with Parkinson’s disease: a randomised, placebo-controlled trial. Neurourol Urodyn. 2021.
  6. Greenberg DR, et al. Sacral nerve stimulation in Parkinson’s disease patients with overactive bladder symptoms. Urology. 2020;144:99–105.
  7. Smith MD, et al. Neuromodulation for storage lower urinary tract symptoms in Parkinson disease: a systematic review. Neuromodulation. 2022.

 

Multiple Sclerosis and the Bladder: Symptoms, Tests and Treatment Options

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Multiple sclerosis (MS) affects the brain and spinal cord, the same nervous system pathways that coordinate bladder storage, bladder emptying and urinary sphincter control. As a result, bladder symptoms are common and may change as MS changes.

The important message is that “an MS bladder” is not one single condition. Some people develop an overactive bladder, some cannot empty properly, and others have a mixture of both. Treatment should therefore be based on the individual bladder pattern, not simply on the diagnosis of MS.

How does MS affect bladder control?

Normally, the bladder stores urine at low pressure while the urinary sphincter stays closed. When it is convenient to urinate, the brain allows the bladder muscle (detrusor) to contract while the sphincter relaxes.

MS plaques can interrupt these signals in different places. This may cause:

  • Neurogenic detrusor overactivity: the bladder contracts unexpectedly during filling, causing urgency, frequency, nocturia and urge incontinence.
  • Detrusor sphincter dyssynergia: the bladder contracts while the sphincter fails to relax properly, rather like pressing the accelerator and brake together. This may produce poor flow, straining, incomplete emptying, high bladder pressure and recurrent urinary infection.
  • Detrusor underactivity: the bladder contraction is too weak or does not last long enough, causing slow emptying or retention.
  • A mixed pattern: urgency and leakage can coexist with a significant residual urine volume.

The European Association of Urology (EAU) reports that approximately 75% of people develop voiding dysfunction within ten years of MS. Reported urodynamic patterns include neurogenic detrusor overactivity in 43–65%, detrusor sphincter dyssynergia in about 35%, and detrusor underactivity in about 25%. These patterns can overlap and can change over time.

Symptoms that deserve assessment

Bladder symptoms may include:

  • sudden urgency and difficulty postponing urination;
  • frequent urination by day or night;
  • leakage before reaching the toilet;
  • hesitancy, interrupted or weak urinary flow;
  • straining to urinate;
  • a feeling of incomplete emptying;
  • recurrent urinary tract infections (UTIs);
  • new bedwetting or unexpected leakage; and
  • an inability to pass urine.

Seek prompt medical review for fever, flank pain, visible blood in the urine, severe bladder pain, inability to urinate, or a sudden major change in bladder function. A UTI can temporarily worsen neurological MS symptoms (a pseudo-relapse), while a true neurological relapse can also alter bladder function.

How is the bladder assessed?

Assessment is tailored to symptoms, disability, MS course and previous treatment. It may include:

  1. A detailed urinary, neurological, bowel, medication and mobility history.
  2. A three-day bladder diary recording fluid intake, voids, urgency, leakage and catheter volumes.
  3. Urinalysis and urine culture when infection is suspected.
  4. Measurement of post-void residual urine with a bladder scan.
  5. Kidney-function blood tests where appropriate.
  6. Urinary tract ultrasound in selected patients, particularly where retention, recurrent infection, stones or upper-tract risk is suspected.
  7. Uroflowmetry, which measures the strength and pattern of the urinary stream.
  8. Urodynamic studies when the result is likely to clarify the diagnosis or change treatment.

Urodynamic studies: useful, but used selectively

Urodynamics measures bladder pressure, abdominal pressure, urine flow and sphincter activity during filling and emptying. It can distinguish urgency caused by detrusor overactivity from poor emptying caused by detrusor weakness, outlet obstruction or detrusor–sphincter dyssynergia. Video urodynamics can additionally show the bladder outlet, reflux and anatomical changes.

Urodynamics is especially useful when:

  • symptoms and residual urine measurements do not tell the same story;
  • both storage and emptying symptoms are present;
  • recurrent UTIs, retention or raised bladder pressures are suspected;
  • invasive treatment such as bladder Botox is being considered;
  • previous treatment has failed or produced unexpected problems;
  • there is concern about kidney or upper urinary tract safety; or
  • bladder function has changed significantly.

Precautions before and during urodynamics

  • Active symptomatic UTI should be treated before an elective invasive study.
  • The team should know about antibiotics, anticoagulants, allergies, pregnancy possibility and previous difficulty with catheterisation.
  • Mobility, spasms, fatigue, cognition, hand function and transfer needs should be planned for in advance.
  • Catheter placement and rapid filling can alter the result; artefacts must be recognised and the study interpreted alongside the person’s normal symptoms and bladder diary.
  • A single study is a snapshot. Results may vary, and repeat testing may be appropriate when findings are inconsistent or the clinical situation changes.
  • Autonomic dysreflexia is mainly a concern in susceptible people with high spinal cord lesions rather than typical MS, but blood pressure and heart rate must be monitored whenever an individual is considered at risk.
  • Preventive antibiotics are not automatically required for every patient; use should be individualised according to urine findings and infection risk.

Treatment: matching the solution to the bladder problem

The aims are to improve continence and quality of life, empty the bladder safely, reduce infections, protect the kidneys and preserve independence.

Everyday measures

Useful first steps may include:

  • timed voiding or bladder training;
  • adjusting excessive, poorly timed fluid intake without becoming dehydrated;
  • reducing caffeine, alcohol or other individual bladder irritants;
  • treating constipation;
  • improving toilet access, clothing and mobility support;
  • pelvic-floor physiotherapy where muscle control and the bladder pattern make this appropriate; and
  • continence pads, sheaths or other products as support, not as a substitute for investigating retention.

Medication for urgency and neurogenic overactive bladder

Antimuscarinic medicines can reduce involuntary bladder contractions and improve capacity. Possible side effects include dry mouth, constipation, blurred vision and impaired bladder emptying. Cognitive burden is relevant, particularly where fatigue, memory concerns or multiple anticholinergic medicines are already present.

Beta-3 agonists, may improve urgency and frequency with less dry mouth and constipation. Blood pressure and drug interactions require consideration. In neurogenic detrusor overactivity, symptom improvement does not necessarily mean that bladder pressures have normalised.

Before and after starting storage medication, the residual urine may need checking because suppressing bladder contractions can reveal or worsen incomplete emptying. Combination therapy is sometimes used under specialist supervision.

An alpha-blocker may occasionally be used to reduce outlet resistance in selected patients with voiding difficulty, although it will not correct every cause of neurogenic retention.

Catheterisation and intermittent self-catheterisation (ISC)

If the bladder cannot empty safely, intermittent catheterisation is often preferred to leaving a catheter in continuously. A small catheter is passed at planned intervals and removed once the bladder is empty.

ISC may:

  • reduce residual urine and overflow leakage;
  • improve bladder-pressure control;
  • make storage medicines or Botox safer; and
  • protect the upper urinary tract in selected patients.

However, it must be practical. Hand dexterity, tremor, spasticity, vision, fatigue, cognition, body position, urethral anatomy, bathroom access and carer support all matter. Training by an experienced continence nurse is valuable, and adaptive equipment or a different catheter may make a major difference.

Possible difficulties include discomfort, urethral trauma, bleeding, false passage and UTI. Bacteria in the urine without symptoms do not always require antibiotics. The EAU emphasises shared decision-making because ISC can increase treatment burden; one cited MS study found a higher UTI rate after starting intermittent catheterisation without a corresponding improvement in quality of life or symptom score.

If ISC is impossible and drainage is essential, an indwelling urethral or suprapubic catheter may be considered. Long-term catheters carry risks including infection, blockage, encrustation, leakage, bladder stones and urethral damage. When long-term drainage is necessary, a suprapubic catheter may offer practical advantages for selected patients, but it is not complication-free.

Bladder Botulinum Toxin injections

Botulinum toxin type A is injected through a cystoscope into multiple areas of the bladder wall. It reduces the nerve signals that trigger involuntary detrusor contractions and is well supported for MS-related neurogenic detrusor overactivity when tablets are ineffective or poorly tolerated.

Benefits may include fewer urgency-incontinence episodes, improved bladder capacity and lower storage pressure. The effect is temporary, commonly lasting several months, so successful treatment usually requires repeat injections.

The main precautions are:

  • UTI must be excluded or treated around the procedure according to local protocol.
  • Botox may weaken bladder emptying and cause urinary retention.
  • A patient who does not already catheterise must be willing and physically able to perform ISC, or have reliable help, if retention develops.
  • UTIs, temporary blood in the urine and discomfort can occur; generalised muscle weakness is rare.
  • Residual urine and symptoms require follow-up, and urodynamics may occasionally be repeated to confirm safe bladder pressures.

Dose and injection technique are individualised. In MS patients who still void spontaneously, a lower dose may reduce—but does not eliminate—the likelihood of needing catheterisation.

Sacral neuromodulation (SNM)

SNM delivers mild electrical stimulation to the sacral nerves, usually via a lead placed near the S3 nerve root and connected to a small implanted pulse generator. It can be considered in carefully selected patients with refractory urgency, urgency incontinence, frequency or non-obstructive urinary retention.

A major advantage is that treatment can be tested first. During a trial phase, symptom diaries help determine whether stimulation produces a meaningful improvement before the permanent battery is implanted.

Important considerations in MS include:

  • the evidence base is smaller and less disease-specific than the evidence supporting Botox for neurogenic detrusor overactivity;
  • results may be less predictable if neurological disease progresses or the bladder pattern changes;
  • implantation requires a procedure and ongoing programming;
  • pain, infection, lead movement, loss of effect, device malfunction and future revision or replacement can occur; and
  • people with MS commonly require future MRI scans. Modern systems may be MRI-conditional, but the exact lead and generator combination and the scanner conditions must be verified before implantation and before every MRI.

SNM does not remove the need to monitor residual urine, infection risk or upper-tract safety when clinically indicated.

Botox versus sacral neuromodulation in MS

Feature Bladder Botox Sacral neuromodulation
Main role Neurogenic detrusor overactivity with urgency and urge incontinence after medication is inadequate or poorly tolerated Selected refractory urgency, urge incontinence, frequency or non-obstructive retention
MS-specific evidence Stronger; supported by randomised trials in neurogenic detrusor overactivity Promising, but fewer MS-specific studies and less certainty about ideal candidates
How it works Temporarily reduces detrusor nerve activity and contractions Modulates sacral nerve signalling to the bladder and pelvic floor
Procedure Cystoscopic injections into the bladder Trial lead followed by permanent implant if successful
Reversibility Effect wears off over months Stimulation can be adjusted or switched off; device can be removed
Repeat treatment Usually repeat injections are required Programming and eventual battery/device revision or replacement may be required
Retention/ISC risk Important; new ISC may become necessary Generally less likely to cause retention; may also treat selected non-obstructive retention
Infection considerations UTI is a common adverse event; urinary infection should be addressed before treatment Surgical-site or device infection can require antibiotics or device removal
MRI considerations No implanted device restriction Confirm that the complete implanted system is MRI-conditional and follow device-specific conditions
Best fit Proven high-pressure or overactive bladder where reducing contractions is the priority and catheterisation is feasible if needed A carefully selected patient who values a test phase, has suitable symptoms and accepts an implant and follow-up
Key limitation Temporary effect and possible urinary retention Implant-related complications and less certain outcomes as MS evolves

Which is better?

Neither treatment is universally “better.” Botulinum Toxin is often favoured when urodynamics demonstrates neurogenic detrusor overactivity and the main goal is to suppress involuntary bladder contractions or unsafe storage pressure. SNM may be attractive in a carefully selected patient with refractory urgency or non-obstructive retention who wants a testable, adjustable treatment and wishes to avoid the higher catheterisation risk associated with Botox.

The decision should consider urodynamic findings, current residual urine, ability to perform ISC, recurrent UTIs, hand function, mobility, expected MRI needs, disease stability, patient preference and access to long-term follow-up.

Other interventional and surgical options

For selected patients, posterior tibial nerve stimulation may improve overactive bladder symptoms without an implant, although evidence in MS is less robust. When severe high-pressure bladder dysfunction remains unsafe despite medication, catheterisation and minimally invasive treatment, reconstructive options such as augmentation cystoplasty or urinary diversion may be considered in a specialist neuro-urology service. These are major procedures reserved for carefully selected cases and require lifelong follow-up.

Follow-up matters

MS and bladder function can both evolve. Review may include symptom assessment, bladder diary, urinalysis when symptomatic, residual urine measurement, renal function, urinary tract imaging and repeat urodynamics according to risk and clinical change.

A useful treatment plan is therefore not simply “stop the leakage.” It should answer four questions:

  1. Is the bladder storing urine at a safe pressure?
  2. Is it emptying adequately?
  3. Is the treatment practical and sustainable for this patient?
  4. Are the kidneys and quality of life being protected over time?

Take-home message

Bladder problems in MS are common, treatable and often more complex than the symptoms suggest. Urgency does not exclude retention, and leakage does not prove that the bladder empties well. A structured assessment, including a residual urine measurement and selective use of urodynamics, allows treatment to be matched to the actual dysfunction.

Medication, ISC, Botox and sacral neuromodulation all have valuable roles. The best choice is the one that safely addresses the individual bladder pattern while fitting the person’s abilities, priorities, MS course and future care needs.

This article provides general information and does not replace individual medical assessment. Treatment availability, indications and funding vary. Patients should discuss their symptoms with their GP, neurologist, continence clinician or urologist.

References and further reading

  1. European Association of Urology. EAU Guidelines on Neuro-urology. Current online guideline: https://uroweb.org/guidelines/neuro-urology/chapter/the-guideline
  2. National Institute for Health and Care Excellence. Urinary incontinence in neurological disease: assessment and management (CG148). https://www.nice.org.uk/guidance/cg148
  3. Gajewski JB, Schurch B, Hamid R, et al. An International Continence Society report on the terminology for adult neurogenic lower urinary tract dysfunction. Neurourology and Urodynamics. 2018;37(3):1152–1161.
  4. Ginsberg D, Gousse A, Keppenne V, et al. Phase 3 efficacy and tolerability study of onabotulinumtoxinA for urinary incontinence from neurogenic detrusor overactivity. Journal of Urology. 2012;187(6):2131–2139.
  5. Cruz F, Herschorn S, Aliotta P, et al. Efficacy and safety of onabotulinumtoxinA in patients with urinary incontinence due to neurogenic detrusor overactivity. European Urology. 2011;60(4):742–750.
  6. American Urological Association/Society of Urodynamics, Female Pelvic Medicine & Urogenital Reconstruction. Adult Neurogenic Lower Urinary Tract Dysfunction Guideline. https://www.auanet.org/guidelines-and-quality/guidelines/adult-neurogenic-lower-urinary-tract-dysfunction

Urge Incontinence After Sling Surgery: Why Timing Matters

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A sling procedure is designed to treat stress urinary incontinence, leakage with coughing, laughing, exercising or lifting. It supports the urethra so that it remains closed when abdominal pressure rises.

A sling does not directly treat an overactive bladder. Some women notice that pre-existing urgency improves after surgery, while others continue to experience urgency or develop new symptoms. When urgency begins soon after surgery, the possible causes differ from those arising several years later.

The most important message is that urgency after a sling is a symptom, not a diagnosis. Treatment should be directed at the cause rather than automatically prescribing bladder medication.

What is urge urinary incontinence?

Urinary urgency is a sudden, compelling need to pass urine that is difficult to defer. When urine leaks before reaching the toilet, this is called urgency urinary incontinence.

Other overactive bladder symptoms may include:

  • Frequent urination during the day
  • Waking at night to urinate
  • “Key-in-the-door” urgency
  • Leakage while rushing to the toilet
  • Bladder spasms
  • Leakage without coughing or physical exertion

This differs from recurrent stress incontinence, where leakage occurs with coughing, sneezing, exercise or lifting. Some women experience both types, known as mixed urinary incontinence.

How common is urgency after a sling?

The reported frequency varies because studies use different definitions, sling types and follow-up periods.

A systematic review of 32 studies involving 3,139 women estimated that new overactive bladder symptoms occur in approximately 9% of women after a mid-urethral sling. Rates were broadly similar among retropubic, transobturator and single-incision slings.[1]

Women who had urgency or urgency incontinence before surgery have a greater chance of persistent symptoms afterwards. Published studies have reported persistent overactive bladder symptoms in approximately 30–40% of women with preoperative mixed incontinence, although estimates vary considerably.[2,3]

These figures should be interpreted carefully. Urgency occurring soon after an operation may be temporary, whereas symptoms developing years later may reflect ageing, menopause, infection or an unrelated bladder disorder rather than a direct surgical complication.

Urgency in the early postoperative period

Urgency during the first days or weeks after sling surgery is relatively common and does not necessarily mean that the sling has failed.

Possible early causes

1. Temporary irritation and inflammation

Anaesthesia, catheterisation, cystoscopy, postoperative swelling and manipulation around the urethra can temporarily irritate the bladder. Pain, constipation, reduced mobility and changes in fluid intake may contribute.

These symptoms often settle as postoperative inflammation resolves.

2. Urinary tract infection

A urinary infection can cause urgency, frequency, burning, bladder discomfort, cloudy urine and urge leakage. Infection should be considered particularly after catheterisation or difficulty emptying the bladder.

A urine culture is preferable when symptoms are significant, recurrent or atypical. Antibiotics should be selected according to the clinical circumstances and culture result rather than given indefinitely for unexplained urgency.

3. Incomplete bladder emptying

Postoperative pain, swelling, pelvic-floor guarding, medication or temporary bladder weakness can make urination difficult. Retained urine may produce frequency, urgency, overflow leakage or recurrent infection.

Symptoms can include:

  • A slow or interrupted stream
  • Hesitancy
  • Straining to urinate
  • A feeling of incomplete emptying
  • Passing small amounts frequently
  • Lower abdominal fullness
  • Inability to pass urine

A bladder scan measuring the post-void residual volume is an important early test.

4. Excessive outlet resistance from the sling

A sling should support the urethra without obstructing it. Occasionally, it produces too much resistance. Obstruction may present dramatically as retention, but it may also cause subtle symptoms such as a slow stream, urgency, recurrent infections or worsening urge incontinence.

When genuinely new urgency begins immediately after surgery particularly when accompanied by deterioration in urine flow or a raised residual volume, bladder outlet obstruction must be actively considered.[2,4]

There is no single test that perfectly proves or excludes female bladder outlet obstruction. The diagnosis depends on the timing of symptoms, examination, urine flow, residual volume and, in selected patients, pressure-flow urodynamics.

5. Bladder or urethral perforation or sling exposure

Unrecognised urinary-tract injury is uncommon but important. A sling or suture entering the bladder or urethra may cause urgency, pain, bleeding, recurrent infection or difficulty urinating.

Cystoscopy may be recommended when symptoms are severe or persistent, or when there is haematuria, recurrent infection, pelvic pain or suspicion of erosion.

6. Pre-existing overactive bladder

Some women had urgency before surgery but were understandably more concerned about stress leakage. Once the stress incontinence has improved, the remaining urgency may become more noticeable.

A sling may improve the stress component of mixed incontinence without curing the underlying overactive bladder.

How should early postoperative urgency be assessed?

Assessment may include:

  • A detailed comparison of symptoms before and after surgery
  • The precise timing of symptom onset
  • Urinalysis and urine culture
  • Examination for prolapse, vaginal healing, sling exposure and pelvic-floor tenderness
  • Measurement of urinary flow and post-void residual urine
  • A bladder diary
  • Cystoscopy when erosion, perforation, bleeding or recurrent infection is suspected
  • Urodynamic testing when the diagnosis remains uncertain or a further invasive procedure is being considered

The type of sling and its operative details should be reviewed whenever possible.

Management of early urgency

Treatment depends on the findings.

If there is infection, constipation, pain or temporary inflammation, these conditions should be treated first. Short-term catheterisation or intermittent self-catheterisation may be required when the bladder is not emptying safely.

When emptying is normal and no surgical complication is evident, a period of observation, bladder training and appropriately selected overactive bladder medication may be reasonable.

However, significant suspected obstruction should not simply be masked with bladder-relaxing medication. Antimuscarinic medication can aggravate incomplete emptying in susceptible patients.

If there is convincing evidence that the sling is too tight, early sling mobilisation, loosening, incision or division may be considered. The procedure and its timing must be individualised. Earlier mobilisation may be technically easier before dense scarring develops, but unnecessary sling division may cause recurrent stress incontinence.

Published expert reviews emphasise balancing two risks:

  1. Waiting too long when meaningful obstruction is present may lead to persistent urgency, infection and impaired bladder function.
  2. Releasing a functioning sling unnecessarily may restore stress leakage.[2,4,5]

Urgency developing months or years after sling surgery

Urgency appearing years later should not automatically be blamed on the sling. A direct sling-related problem remains possible, but other causes become increasingly important.

Possible delayed causes

Age-related overactive bladder

Overactive bladder becomes more common with age. Changes in bladder sensation, detrusor function, mobility, sleep, fluid regulation and neurological health can produce urgency independently of previous surgery.

Menopause and genitourinary syndrome of menopause

Reduced oestrogen levels may contribute to vaginal and urethral tissue changes, discomfort, recurrent infection and urinary urgency. Selected postmenopausal women may benefit from local vaginal oestrogen, provided there is no contraindication and the treatment is discussed with their doctor.

Recurrent urinary infection

Repeated urgency episodes associated with pain, dysuria or cloudy urine require appropriate cultures. Persistent symptoms with repeatedly negative cultures should prompt consideration of overactive bladder, pelvic-floor dysfunction, bladder pain syndrome, stones or sling-related complications rather than repeated empirical antibiotics.

Pelvic organ prolapse

A cystocele or other vaginal prolapse may alter bladder emptying and cause urgency, frequency or infection. Examination is important, particularly when there is a vaginal bulge, pressure or difficulty emptying.

Delayed obstruction or scarring

Progressive scarring around the urethra or sling can occasionally produce delayed voiding difficulty. Comparing the present urinary stream and residual volume with earlier results can be informative.

Vaginal, urethral or bladder erosion

Delayed sling exposure or erosion may present with vaginal discharge, bleeding, pain during intercourse, pelvic pain, recurrent infections, haematuria or urgency. Cystoscopy and vaginal examination are usually required when this is suspected.

Other bladder or neurological disease

Diabetes, neurological disorders, impaired mobility, diuretic medication, excessive fluid intake, bladder stones and, less commonly, bladder tumours can produce urgency. Visible blood in the urine should never be attributed to overactive bladder without appropriate investigation.

Investigating delayed urgency

A sensible assessment commonly includes:

  • Review of preoperative and postoperative symptoms
  • Urinalysis and urine culture
  • A three-day bladder diary
  • Examination for vaginal atrophy, prolapse, pelvic-floor dysfunction and sling exposure
  • Urinary flow rate and post-void residual measurement
  • Review of medications, fluid intake, caffeine and bowel function
  • Cystoscopy when there is haematuria, pain, recurrent infection or suspected erosion
  • Urodynamic studies when symptoms are complex, emptying is abnormal, previous treatment has failed or further surgery is contemplated

Urodynamics may demonstrate detrusor overactivity, impaired bladder contraction or a pressure-flow pattern suggesting outlet obstruction. A normal study does not invalidate genuine urgency, and urodynamics cannot always determine whether the sling is the cause.

Treatment when obstruction and sling complications have been excluded

When evaluation supports overactive bladder rather than a mechanical complication, management generally follows established overactive bladder principles.[6–8]

Lifestyle and bladder strategies

Options include:

  • Reducing excessive fluid intake
  • Moderating caffeine, alcohol and carbonated drinks
  • Treating constipation
  • Weight management where appropriate
  • Bladder training with gradually increasing voiding intervals
  • Urgency-suppression techniques
  • Pelvic-floor physiotherapy
  • Improving access to the toilet and managing mobility limitations

Pelvic-floor treatment should focus on both strength and relaxation. Continually “squeezing harder” may worsen symptoms in women with an overactive or painful pelvic floor.

Medication

Medication options include:

Antimuscarinic medicines

Examples include solifenacin, oxybutynin, tolterodine and darifenacin. Possible adverse effects include dry mouth, constipation, blurred vision and cognitive effects. Medication selection should consider age, other medicines, glaucoma, bowel function and the ability to empty the bladder.

Beta-3 adrenergic agonists

Mirabegron relaxes the bladder during storage and may cause fewer dry-mouth and constipation symptoms than antimuscarinic therapy. Blood pressure and drug interactions require consideration.

Combination treatment may help selected patients who have an inadequate response to one medication. Residual urine should be monitored when there is concern about impaired emptying.

Vaginal oestrogen

Local vaginal oestrogen may be appropriate for postmenopausal women with vaginal atrophy, recurrent infection or associated urinary symptoms. It is different from systemic hormone replacement and should be prescribed after individual assessment.

Percutaneous tibial nerve stimulation

Tibial nerve stimulation uses electrical stimulation near the ankle to influence the neural pathways controlling the bladder. It is minimally invasive but usually requires a course of repeated treatment sessions and sometimes maintenance therapy.

Intravesical botulinum toxin

Botulinum toxin can reduce involuntary bladder contractions and urgency incontinence. Potential complications include urinary infection and difficulty emptying the bladder. Patients should understand that temporary intermittent self-catheterisation may occasionally be required.

Sacral neuromodulation

Sacral neuromodulation modifies the nerve signals involved in bladder storage and emptying. It may be considered for persistent urgency and urgency incontinence that have not responded adequately to conservative or medication-based treatment.

A test phase is normally performed before permanent implantation. It can be effective after previous continence surgery, provided that infection, significant obstruction and sling erosion have first been addressed.

When is sling revision appropriate years later?

Sling incision, partial excision or more extensive removal may be appropriate when there is evidence of:

  • Clinically important bladder outlet obstruction
  • Urethral or bladder erosion
  • Symptomatic vaginal exposure
  • Persistent infection associated with the sling
  • Significant sling-related pain
  • A clear relationship between the sling and disabling urinary symptoms

Sling revision is not a reliable treatment for otherwise unexplained overactive bladder. Urgency may persist after revision, particularly when it is caused by detrusor overactivity, ageing or another bladder disorder.

Possible consequences of sling revision include:

  • Recurrent stress urinary incontinence
  • Bleeding or infection
  • Urethral or bladder injury
  • Persistent pain or urgency
  • Need for further continence treatment

Shared decision-making is therefore essential.

The role of sling release and urethrolysis

When urgency or urge incontinence follows sling surgery, an important question is whether the sling has created excessive resistance to bladder emptying. If meaningful obstruction is present, treating the bladder alone may not solve the underlying problem.

Sling release is not routinely recommended for isolated urgency when urinary flow and bladder emptying are normal. It is most useful when the history, examination and investigations suggest that the urethra is being mechanically obstructed.

When should sling-related obstruction be suspected?

Features that may indicate excessive sling tension or postoperative scarring include:

  • New difficulty passing urine after surgery
  • Complete or intermittent urinary retention
  • A urinary stream that became slower after the sling
  • Hesitancy, straining or an interrupted stream
  • A persistent feeling of incomplete emptying
  • An increased post-void residual volume
  • Recurrent urinary infections
  • New urgency or urgency incontinence associated with impaired emptying
  • Worsening bladder function that began soon after surgery
  • A pressure-flow study suggesting bladder outlet obstruction
  • Cystoscopic or examination findings suggesting sling erosion, distortion or excessive urethral elevation

Women do not need to be in complete retention to have clinically important obstruction. Some can empty the bladder by generating higher bladder pressures or straining, but may develop urgency, frequency, infections and progressive bladder dysfunction.

There is no universally accepted urodynamic definition of female bladder outlet obstruction. A normal or equivocal urodynamic study does not completely exclude it. The diagnosis therefore combines the timing of symptoms, changes in urinary flow, residual urine, examination findings and, when useful, cystoscopy and pressure-flow urodynamics.[5,10]

Sling mobilisation or loosening

When voiding difficulty is recognised soon after a mid-urethral sling procedure, the sling may sometimes be mobilised or loosened before dense scar tissue forms around it.

Through a small vaginal incision, the surgeon identifies the sling and gently pulls it away from the urethra to reduce its tension. The sling is usually preserved rather than cut.

Early mobilisation may:

  • Restore bladder emptying
  • Relieve excessive outlet resistance
  • Reduce the need for prolonged catheterisation
  • Preserve more of the original stress-incontinence benefit than complete sling division

Temporary catheterisation remains appropriate for mild early retention that is improving. However, prolonged observation may be undesirable when significant obstruction persists, particularly when repeated voiding trials fail or the patient remains dependent on catheterisation.

The IUGA committee opinion notes that early sling mobilisation often resolves postoperative voiding dysfunction with relatively low morbidity. The exact timing should be individualised rather than dictated by one fixed number of days.[5]

Sling incision or division

If mobilisation is not possible or is unsuccessful, the sling may be cut through a vaginal incision. This is known as sling incision, division or lysis.

It may be considered when there is:

  • Persistent retention
  • A consistently elevated residual volume
  • Marked deterioration in urinary flow
  • Recurrent infection associated with poor emptying
  • New urgency or urge incontinence strongly associated with obstruction
  • Persistent obstructive symptoms despite an initial period of conservative management

Dividing the sling reduces its compression on the urethra. Urinary flow and emptying often improve, but urgency does not always disappear immediately. A bladder that has worked against obstruction may take time to recover, and some women have coexisting detrusor overactivity requiring additional treatment.

The principal trade-off is recurrent stress urinary incontinence. The risk varies between studies and depends on the type of sling, the location and extent of the incision, the time since implantation and the patient’s underlying urethral function. This possibility should be discussed before surgery.

Partial sling excision

Partial excision removes the central vaginal portion of the sling beneath or adjacent to the urethra. It may be appropriate when simple division is inadequate or when there is:

  • Vaginal sling exposure
  • Localised pain or tenderness
  • Infection involving the sling
  • Urethral or bladder erosion
  • Dense scarring around the urethra
  • Persistent obstruction after a previous sling incision

Removing more sling material may provide greater decompression but can also increase the risk of recurrent stress leakage and operative injury.

What is formal urethrolysis?

Urethrolysis is a more extensive operation that frees the urethra and bladder neck from surrounding scar tissue or restrictive sling material.

It is generally reserved for established or complex obstruction, particularly when:

  • Symptoms have been present for months or years
  • Dense fibrosis has developed
  • Previous sling incision or partial excision has failed
  • The original operation involved an autologous fascial or bladder-neck sling
  • The urethra remains fixed, elevated or compressed
  • Multiple previous continence procedures have been performed

The operation may be performed through a vaginal, retropubic or combined approach, depending on the original procedure and the location of the scar tissue. The aim is to restore urethral mobility and reduce outlet resistance while avoiding injury to the urethra and bladder.[10]

Formal urethrolysis is now required less often after uncomplicated mid-urethral slings because many cases can be managed with early mobilisation, sling division or partial excision. It remains valuable in delayed, recurrent or anatomically complex obstruction.

Will sling release cure the urgency?

Not necessarily.

Urgency is most likely to improve when:

  • It began soon after sling placement
  • It was accompanied by a weaker urinary stream
  • Residual urine increased after surgery
  • There is persuasive clinical or urodynamic evidence of obstruction
  • The obstruction is relieved before permanent bladder changes develop

Urgency may persist when it was present before surgery or when it is primarily caused by:

  • Idiopathic overactive bladder
  • Age-related bladder change
  • Detrusor overactivity
  • Menopause or genitourinary syndrome of menopause
  • Recurrent infection
  • Pelvic-floor dysfunction
  • Neurological disease
  • Diabetes or another medical condition

Sling release should therefore not be presented as a guaranteed treatment for urgency. Some patients require subsequent bladder training, medication, botulinum toxin, tibial nerve stimulation or sacral neuromodulation even after obstruction has been corrected.

Risks of sling release or urethrolysis

Potential complications include:

  • Recurrent stress urinary incontinence
  • Persistent urgency or urge incontinence
  • Bleeding or infection
  • Injury to the urethra or bladder
  • Urethrovaginal fistula, although uncommon
  • Ongoing pain or scarring
  • Continued difficulty emptying
  • Need for further continence surgery

One comparative series reported new stress incontinence in approximately one-quarter of women following urethrolysis or partial sling excision without simultaneous placement of another sling. This figure should not be treated as a universal prediction because outcomes vary with the original operation, indication and surgical technique.[11]

Placing another continence procedure at the same time as urethrolysis is controversial. In many cases it is preferable to relieve the obstruction first, allow bladder function to stabilise and then reassess any recurrent stress incontinence. This avoids immediately replacing one potentially obstructive procedure with another, although management must be individualised.

Why timely recognition matters

Persistent outlet obstruction can contribute to recurrent infections, detrusor overactivity, impaired bladder contraction and potentially irreversible bladder dysfunction. Conversely, releasing a sling without convincing evidence of obstruction can unnecessarily restore stress leakage.

The decision should therefore be based on the complete clinical picture and shared decision-making—not urgency alone.

When should you seek urgent medical attention?

Contact your surgeon or seek urgent assessment if you:

  • Cannot pass urine
  • Develop fever, chills or worsening pelvic pain
  • Have heavy vaginal bleeding
  • See blood in the urine
  • Develop severe lower abdominal swelling or discomfort
  • Experience rapidly worsening leakage with difficulty emptying
  • Have recurrent infections, vaginal mesh exposure or unexplained discharge

The take-home message

Urge incontinence after sling surgery deserves a structured assessment.

In the early postoperative period, infection, swelling, incomplete emptying and excessive sling-related outlet resistance are particularly important. New urgency accompanied by a weaker stream or increased residual urine should raise concern about obstruction.

When urgency develops years later, ageing, menopause, recurrent infection, prolapse, medication effects and idiopathic overactive bladder become more likely, although delayed obstruction or sling erosion must still be considered.

Once infection, obstruction and sling complications have been excluded, treatment can include bladder training, pelvic-floor physiotherapy, medication, tibial nerve stimulation, bladder botulinum toxin or sacral neuromodulation. Sling revision should be reserved for appropriately selected patients because it may reintroduce stress incontinence and does not guarantee that urgency will resolve.

So, if new urgency symptoms have developed and this is making life miserable for you, come see your local Brisbane urologist, Dr Jo Schoeman for advice.

References

  1. Pergialiotis V, et al. De novo overactive bladder following midurethral sling procedures: a systematic review and meta-analysis. International Urogynecology Journal. 2017;28:1631–1638. PubMed
  2. Gomelsky A, et al. Urgency and urgency incontinence following stress urinary incontinence surgery: a review of evaluation and management. Indian Journal of Urology. 2022. Full text
  3. Shin JH, Choo MS. De novo or resolved urgency and urgency urinary incontinence after midurethral sling operations. Investigative and Clinical Urology. 2019;60:373–379. Full text
  4. Marcelissen T, Van Kerrebroeck P. Urgency after a sling: review of the management. Current Urology Reports. 2014;15:402. PubMed
  5. Bazi T, et al. Management of post-midurethral sling voiding dysfunction: IUGA Research and Development Committee opinion. International Urogynecology Journal. 2018;29:23–28. PubMed
  6. American Urological Association/Society of Urodynamics, Female Pelvic Medicine & Urogenital Reconstruction. Guideline on the Diagnosis and Treatment of Idiopathic Overactive Bladder. 2024. AUA/SUFU guideline
  7. European Association of Urology. Guidelines on Non-neurogenic Female Lower Urinary Tract Symptoms. EAU guideline
  8. International Urogynecological Association. Management of mixed urinary incontinence: IUGA Committee Opinion. International Urogynecology Journal. 2024. Full text
  9. American Urological Association. Stress Urinary Incontinence Guideline. AUA guideline
  10. Gleich LD, Goldman HB. Urethrolysis. Neurourology and Urodynamics. 2024. Full-text clinical review
  11. Drain A, et al. Current role of urethrolysis and partial excision in patients seeking revision of anti-incontinence sling. Female Pelvic Medicine & Reconstructive Surgery. 2019;25:362–366. Article
  12. Pinsard M, et al. Comparison of early loosening versus delayed section of mid-urethral slings in patients with postoperative bladder outlet obstruction. International Urogynecology Journal. 2023. Article

This information is intended for general patient education and does not replace individual medical assessment. Management should be tailored to the type of sling, timing of symptoms, examination findings, bladder emptying and the patient’s priorities.

Understanding Overactive Bladder: Symptoms, Assessment and Treatment Options

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Overactive bladder can make everyday life feel organised around the nearest toilet. Shopping, travelling, exercise, sleep and social activities may all be affected by sudden urgency, frequent urination or leakage.

It is common, but it is not simply an inevitable part of ageing. Symptoms deserve assessment because several bladder, urinary and medical conditions can produce a similar pattern.

This article explains overactive bladder as a condition and outlines the broad approaches used to investigate and manage it. It does not recommend a particular medicine, device or brand.

What is overactive bladder?

Overactive bladder (OAB) is a symptom syndrome characterised by urinary urgency, a sudden, compelling need to pass urine that is difficult to defer. It is usually accompanied by increased frequency during the day and waking at night to urinate, with or without urgency urinary incontinence.

Possible symptoms include:

  • a sudden need to urinate that is difficult to postpone
  • passing urine more frequently than expected
  • waking repeatedly at night to urinate
  • leaking urine before reaching the toilet
  • restricting travel or activities because of toilet access
  • using pads because of unpredictable urgency

OAB is a clinical diagnosis. Some people demonstrate involuntary bladder contractions, known as detrusor overactivity, during urodynamic testing; others with typical symptoms do not.

What causes the symptoms?

The bladder normally stores urine at low pressure and empties when it is convenient. OAB symptoms arise when the sensation or control of bladder filling becomes abnormal. The cause is not always identifiable.

Factors that can cause or aggravate similar symptoms include:

  • urinary tract infection
  • excessive caffeine, alcohol or fluid intake
  • medicines such as diuretics
  • constipation
  • poorly controlled diabetes
  • bladder stones
  • incomplete bladder emptying
  • bladder outlet obstruction
  • pelvic floor dysfunction
  • genitourinary syndrome of menopause
  • neurological conditions
  • reduced mobility or difficulty reaching a toilet
  • sleep disorders or fluid redistribution causing nocturia

Visible blood in the urine, recurrent infection, pelvic pain, difficulty passing urine or rapidly changing symptoms require further assessment rather than an assumption that OAB is the cause.

Overactive bladder in men

Urgency and frequency in men may occur alone or together with bladder outlet obstruction from prostate enlargement, urethral narrowing or impaired bladder contraction.

An assessment may therefore include the urinary stream, prostate, urinary flow and the amount of urine remaining after voiding. Treating urgency without recognising significant obstruction or incomplete emptying may worsen retention in some patients.

Overactive bladder after menopause

After menopause, reduced oestrogen can contribute to vaginal dryness, irritation, recurrent urinary infection, urgency and discomfort. These changes are often grouped under the term genitourinary syndrome of menopause.

Identifying vaginal or urinary tract changes is important because management may differ from treatment for isolated OAB. Any hormonal treatment requires an individual discussion of suitability, expected benefit, uncertainty and risk.

How is OAB assessed?

Assessment begins with listening to the pattern and impact of the symptoms. Depending on the individual, it may include:

  • a medical, urinary and medication history
  • examination
  • urinalysis or urine culture
  • a bladder diary
  • review of fluid, caffeine and alcohol intake
  • assessment of bowel function
  • measurement of urinary flow
  • ultrasound measurement of post-void residual urine
  • kidney-function or glucose testing when clinically indicated
  • assessment for pelvic organ prolapse or prostate enlargement

A bladder diary records the timing and volume of drinks, urination, urgency and leakage. It can help distinguish OAB from excessive urine production, nocturnal polyuria or habitual frequent voiding.

Are urodynamic studies always required?

No. Many patients with uncomplicated symptoms can begin conservative treatment without urodynamics.

Urodynamic testing may be helpful when the diagnosis is uncertain, bladder emptying is poor, previous treatment has failed, neurological dysfunction is suspected, or an invasive treatment is being considered. The test should answer a specific clinical question rather than be performed routinely.

When might cystoscopy or imaging be needed?

Cystoscopy or urinary tract imaging is not automatically required for uncomplicated OAB. It may be considered when there is blood in the urine, recurrent infection, pain, suspected stones, previous pelvic surgery, obstruction or another concerning feature.

First steps in management

Conservative treatment is often the starting point and may be used alone or with other therapies.

Bladder training

Bladder training aims to increase the interval between toilet visits and reduce the habit of urinating “just in case.” A planned program may involve:

  • recording voiding patterns
  • gradually extending the interval between voids
  • using distraction, breathing or pelvic floor contractions when urgency occurs
  • avoiding rushing to the toilet where it is safe to pause

Progress is usually gradual. An unrealistic schedule can lead to frustration or increased leakage.

Pelvic floor rehabilitation

Pelvic floor exercises may help suppress urgency and improve continence. Correct technique matters; repeatedly contracting the wrong muscles or performing excessive exercises may be unhelpful. Assessment by a pelvic floor physiotherapist can be useful.

Fluids and bladder irritants

Reducing excessive caffeine or alcohol may improve symptoms. Large volumes of fluid over a short period can also provoke urgency.

Fluid should not be restricted excessively. Concentrated urine may irritate the bladder and inadequate intake can contribute to constipation, infection or dehydration. Advice should reflect medical conditions, climate and activity.

Constipation, weight and mobility

Treating constipation may reduce pressure on the bladder. Weight reduction can improve urinary symptoms for some people. Mobility aids, clear access to the toilet and suitable clothing can reduce functional leakage even when bladder symptoms persist.

Managing nocturia

Waking at night to urinate is not always caused by OAB. Other contributors include sleep apnoea, leg swelling, heart or kidney disease, evening fluid intake and medicines.

Management should be directed at the cause. Moving a diuretic to a different time, for example, should occur only on advice from the prescribing clinician.

Where do prescription medicines fit?

Prescription medicines may be discussed when conservative measures have not provided sufficient relief, when symptoms are particularly troublesome, or when a combined approach is appropriate.

Two broad medicine classes are commonly used:

  1. Antimuscarinic medicines, which reduce muscarinic stimulation of the bladder.
  2. Beta-3 adrenergic agonists, which promote bladder relaxation during filling.

These medicines are not suitable for everyone. The choice should follow an individual assessment of symptoms, bladder emptying, other medical conditions, current medicines and personal priorities.

Antimuscarinic medicines

This class may reduce urgency, frequency and urgency incontinence in some patients. Possible adverse effects include:

  • dry mouth
  • constipation
  • blurred vision or dry eyes
  • dizziness or drowsiness
  • difficulty emptying the bladder
  • urinary retention
  • confusion or cognitive effects, particularly in susceptible older people

Caution may be required in people with impaired bladder emptying, certain forms of glaucoma, severe constipation or gastrointestinal motility disorders, cognitive impairment, or a high total anticholinergic burden.

Anticholinergic burden and cognition

Many medicines used for conditions other than OAB also have anticholinergic effects. The combined burden may contribute to dry mouth, constipation, sedation, falls, confusion and loss of function.

Observational research has found associations between prolonged exposure to medicines with strong anticholinergic effects and cognitive decline or dementia. An association does not prove that a particular medicine caused dementia in an individual patient, but the overall medication burden deserves review—especially in older people or those with cognitive concerns.

Beta-3 adrenergic agonists

This class acts differently and generally produces fewer classic anticholinergic effects. Possible adverse effects can include:

  • increased blood pressure
  • headache
  • palpitations or faster heart rate
  • urinary tract infection
  • difficulty emptying the bladder
  • medicine interactions

Blood pressure, cardiovascular history, kidney or liver function, bladder emptying and interacting medicines may influence suitability. Current Australian Product Information should guide prescribing and monitoring.

Can medicine classes be combined?

Combination therapy may be considered after a partial response to a single medicine, but additional benefit must be weighed against increased adverse effects, interactions and cost.

In men with both storage symptoms and possible bladder outlet obstruction, treatment may also need to address the obstructive component. A urinary flow test and post-void residual measurement may help guide the decision.

How is a medicine trial reviewed?

A medicine trial should have a clear purpose and review point. Reassessment may consider:

  • urgency episodes
  • daytime and night-time frequency
  • leakage and pad use
  • bladder diary findings
  • quality of life
  • blood pressure where relevant
  • constipation, dry mouth, cognition or other adverse effects
  • urinary flow and residual urine in patients at risk of retention

If there is little benefit or unacceptable harm, the diagnosis and management plan should be reconsidered. Increasing or continuing treatment indefinitely is not automatically appropriate.

Patients should not start, stop or change a prescription medicine without advice from their prescriber.

What if conservative care and medicines are insufficient?

Persistent symptoms do not mean that no further options exist. Reassessment is important before an invasive treatment to confirm the likely cause and identify incomplete emptying, obstruction or another condition.

Depending on the patient, options may include:

Intravesical botulinum toxin treatment

A prescription medicine can be injected into the bladder wall through a cystoscope to reduce involuntary bladder contractions. Some patients experience reduced urgency and leakage, but benefit varies and is temporary.

Important risks include urinary tract infection, increased residual urine and inability to empty the bladder adequately. Some patients require temporary intermittent self-catheterisation. Treatment must be selected and administered by an appropriately qualified clinician.

Tibial nerve stimulation

Electrical stimulation near the ankle can influence the nerve pathways involved in bladder control. Treatment protocols vary, and repeated sessions may be required. Response is variable.

Sacral neuromodulation

Sacral neuromodulation uses an implanted system to stimulate nerves involved in bladder and pelvic-floor control. It may be considered for selected patients after assessment and usually involves a test phase. Potential disadvantages include an operation, device-related complications, later revision and ongoing follow-up.

These treatments differ in invasiveness, risks, durability, repeat-treatment requirements, availability and cost. None is the best choice for every patient.

When should medical advice be sought promptly?

Prompt assessment is appropriate for:

  • inability to pass urine
  • visible blood in the urine
  • fever, flank pain or systemic illness with urinary symptoms
  • recurrent urinary infections
  • new leg weakness, numbness or loss of bowel control
  • significant pelvic or bladder pain
  • rapidly worsening symptoms
  • new incontinence accompanied by neurological symptoms

Urgent or emergency care may be required when symptoms are severe.

Questions to discuss with a clinician

  • Are my symptoms most consistent with OAB, or could there be another cause?
  • Am I emptying my bladder adequately?
  • Which conservative measures are most relevant to me?
  • What are the reasonable treatment options, including no immediate treatment?
  • What benefit might I realistically expect?
  • Which adverse effects or interactions matter with my other conditions and medicines?
  • How and when will treatment be reviewed?
  • Would further testing change management?
  • What symptoms should prompt urgent assessment?

The bottom line

Overactive bladder is a symptom syndrome, not a single test result. Assessment should look for infection, excessive urine production, incomplete emptying, obstruction, menopause-related changes, neurological disease and other contributors.

Management usually begins with education, bladder training, pelvic floor rehabilitation and attention to fluids, caffeine, constipation and related medical problems. Prescription medicine may be one part of treatment after an individual assessment, but benefits vary and adverse effects matter.

When symptoms remain troublesome, further evaluation and carefully selected minimally invasive treatments may be considered. The aim is not simply to prescribe another tablet; it is to understand the cause, reduce symptoms safely and improve daily life.

This article provides general disease education and does not replace individual medical advice. It does not promote or recommend a particular prescription medicine, therapeutic product, device or brand. Treatment decisions should be made with an appropriately qualified health professional after assessment of the individual patient.

References and further reading

Publication note

This draft is structured as general disease education for an Australian public-facing website. It should not be accompanied by branded medicine or device imagery, product pricing, supply information, testimonials, inducements, superiority claims, or wording that encourages a reader to request a named therapeutic good. Review the page title, search metadata, images, links, social-media caption and nearby booking prompts together, because the overall context determines whether material may be regarded as advertising.

Urodynamic Studies: Understanding How Your Bladder Works

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Bladder problems are not always as straightforward as they appear.

Two people may both complain of urinary urgency, leakage or difficulty emptying their bladder, yet the underlying causes can be completely different. One bladder may be contracting when it should be relaxing, another may not contract strongly enough, and sometimes the bladder is behaving perfectly well while the outlet is causing all the trouble.

This is where urodynamic studies, often simply called urodynamics, can help.

Think of urodynamics as a stress test for the bladder. Rather than simply looking at its anatomy, we observe how the bladder fills, stores urine and empties while simultaneously measuring pressures, urine flow and sometimes pelvic floor activity.

The aim is not merely to produce a collection of colourful graphs. The important question is:

What is the bladder actually doing, and will knowing this change the treatment?

What Are Urodynamic Studies?

Urodynamics refers to a group of tests that assess the function of the bladder, urethra and urinary sphincter.

Depending on the clinical situation, testing may evaluate:

  • How much urine the bladder can comfortably hold
  • Bladder sensation during filling
  • Whether the bladder remains relaxed while filling
  • Whether involuntary bladder contractions occur
  • Whether urinary leakage occurs and why
  • The pressure required to store urine
  • The strength of the bladder muscle during urination
  • Whether there is obstruction to urinary flow
  • Whether the bladder empties completely
  • How the urinary sphincter and pelvic floor behave during filling and voiding

Urodynamics therefore investigates function rather than simply structure.

An ultrasound or cystoscopy may show us what the urinary tract looks like. Urodynamics tells us what it is doing.

Who May Need Urodynamic Testing?

Not every patient with urinary symptoms requires urodynamics.

For many straightforward urinary problems, the diagnosis can be made from the history, examination, bladder diary, urine testing, flow studies and ultrasound.

Urodynamics becomes particularly useful when the diagnosis is uncertain, symptoms are complex, previous treatments have failed, neurological disease is present, or an invasive treatment is being considered where understanding bladder function may alter the choice of treatment.

Common indications include:

Urinary Incontinence

Urodynamics may be useful when assessing:

  • Stress urinary incontinence
  • Urgency urinary incontinence
  • Mixed urinary incontinence
  • Persistent leakage following previous continence surgery
  • Incontinence following prostate surgery
  • Complex or unexplained urinary leakage

In straightforward female stress urinary incontinence, urodynamics is not necessarily required before treatment. It becomes more useful when symptoms and clinical findings do not agree or when there are complicating factors.

Overactive Bladder

Patients with overactive bladder may experience:

  • Urinary urgency
  • Frequent urination
  • Nocturia
  • Urgency urinary incontinence

Urodynamics can sometimes demonstrate detrusor overactivity, where the bladder muscle contracts involuntarily during filling.

Importantly, a normal urodynamic study does not necessarily exclude overactive bladder. Symptoms and urodynamic findings do not always travel together.

Difficulty Emptying the Bladder

Patients may report:

  • Poor urinary flow
  • Hesitancy
  • Straining
  • Intermittent flow
  • Incomplete emptying
  • Urinary retention

The challenge is determining why.

Is there an obstruction?

Or is the bladder muscle simply not contracting strongly enough?

The symptoms can look remarkably similar, but the treatments can be very different.

Men With Lower Urinary Tract Symptoms

In men with prostate enlargement, urodynamics may help distinguish between:

Bladder outlet obstruction

and

Detrusor underactivity, where the bladder muscle has insufficient strength to empty effectively.

This distinction may be particularly valuable before prostate surgery when there is uncertainty about whether removing the obstruction will improve urinary flow.

Neurological Bladder Dysfunction

Urodynamics has an especially important role in patients with neurological conditions such as:

  • Spinal cord injury
  • Multiple sclerosis
  • Parkinson’s disease
  • Spina bifida
  • Stroke
  • Certain spinal disorders

In these patients, we are interested not only in urinary symptoms but also in whether bladder pressures could potentially damage the kidneys.

Before or After Certain Urinary Procedures

Urodynamics may also be considered:

  • Before complex continence surgery
  • Following unsuccessful continence surgery
  • Before some bladder outlet procedures
  • Following prostate surgery when symptoms persist
  • When considering treatments such as bladder Botox or sacral neuromodulation in selected complex patients

What Happens During a Urodynamic Study?

The test is usually performed as an outpatient procedure.

It generally takes approximately 30–60 minutes, although this varies depending on the type of study being performed.

You can usually eat, drink and take your normal medications unless specifically instructed otherwise.

Step 1: Arriving With a Comfortably Full Bladder

You may be asked to arrive with a reasonably full bladder.

You will urinate into a special toilet called a uroflowmeter.

This measures:

  • Urine volume
  • Maximum urinary flow rate
  • Average flow rate
  • The shape of the urinary flow curve
  • How long urination takes

An ultrasound may then measure how much urine remains in the bladder.

This is called the post-void residual.

Step 2: Placement of Small Catheters

A very fine catheter is gently passed through the urethra into the bladder.

A second small pressure catheter is usually placed into the rectum, or occasionally the vagina.

Why two pressure measurements?

Because pressure inside the abdomen affects pressure inside the bladder.

By measuring both, the computer can calculate the pressure generated specifically by the bladder muscle:

Detrusor pressure = bladder pressure − abdominal pressure

This simple equation sits at the heart of conventional urodynamics.

Step 3: Filling the Bladder

The bladder is slowly filled with sterile fluid.

During filling, you will be asked to describe what you feel.

We may record:

  • First sensation of bladder filling
  • First desire to urinate
  • Strong desire to urinate
  • Maximum bladder capacity

The pressure inside the bladder is continuously monitored.

Normal filling cystometrogram

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Normal filling cystometrogram. During filling, the bladder accommodates increasing volume while detrusor pressure (Pdet) remains relatively stable. Coughs cause corresponding rises in Pves and Pabd without a true detrusor contraction. Sensations such as first sensation, first desire and strong desire can be marked on the tracing.

 

Step 4: Provocative Testing

You may be asked to:

  • Cough
  • Strain
  • Stand
  • Change position
  • Listen to running water

These manoeuvres are not designed to make the test unnecessarily theatrical. They help reproduce the circumstances under which your symptoms normally occur.

If urinary leakage occurs during coughing without an involuntary bladder contraction, this may demonstrate urodynamic stress incontinence.

Step 5: Voiding

Once the bladder is comfortably full, you will be asked to urinate.

During urination we simultaneously measure:

  • Urinary flow
  • Bladder pressure
  • Abdominal pressure
  • Detrusor pressure

This is called a pressure-flow study.

It can be extremely useful when determining whether poor urinary flow is caused by obstruction or weak bladder contraction.

What Does Urodynamics Measure?

Bladder Sensation

We assess when you first become aware that the bladder is filling and when the desire to urinate becomes stronger.

Sensation may be:

  • Normal
  • Increased
  • Reduced
  • Absent

Abnormal bladder sensation may occur in several neurological and functional bladder disorders.

Bladder Capacity

The amount of urine the bladder can comfortably hold is measured.

A small functional capacity may occur with conditions such as severe urgency or bladder hypersensitivity, although capacity must always be interpreted in clinical context.

Bladder Compliance

A healthy bladder should behave rather like a flexible reservoir.

As it fills, its volume should increase without a major rise in pressure.

Poor bladder compliance means pressure rises excessively as the bladder fills.

This is particularly important in some neurological bladder disorders because persistently elevated storage pressures can potentially threaten the upper urinary tract.

Detrusor Overactivity

If the bladder muscle contracts involuntarily during filling, this is called:

Detrusor overactivity.

It may be associated with:

  • Urgency
  • Urgency incontinence
  • Frequency
  • Nocturia

When associated with an underlying neurological condition, it may be described as neurogenic detrusor overactivity.

Examples of terminal, phasic, wet and dry detrusor overactivity.

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Detrusor overactivity. During bladder filling there is an involuntary increase in Pdet that cannot be explained by a corresponding increase in abdominal pressure. The contraction may be associated with urgency and, when leakage occurs, urgency urinary incontinence.

View the LABORIE-based detrusor-overactivity tracings

Stress Urinary Incontinence

If urine leaks when coughing or straining without a detrusor contraction, this supports a diagnosis of:

Urodynamic stress incontinence.

Additional measurements such as leak-point pressures may occasionally contribute to assessment in selected patients.

Bladder Outlet Obstruction

During urination, a pattern of:

High bladder pressure + low urinary flow

may suggest obstruction.

In men, benign prostate enlargement is a common cause.

Other causes include:

  • Urethral stricture
  • Bladder neck obstruction
  • Previous continence surgery
  • Dysfunctional voiding

Bladder outlet obstruction: pressure-flow study

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Bladder outlet obstruction. During voiding the bladder generates a relatively high detrusor pressure, but urinary flow remains reduced. This high-pressure, low-flow relationship is characteristic of increased bladder outlet resistance.

In men, pressure-flow studies allow calculation of the Bladder Outlet Obstruction Index (BOOI):

BOOI = PdetQmax − 2(Qmax)

For men, BOOI >40 is generally classified as obstructed, 20–40 as equivocal and <20 as unobstructed.

Detrusor Underactivity

Sometimes the urinary flow is poor because the bladder muscle does not generate sufficient pressure.

This is known as:

Detrusor underactivity.

This distinction matters.

Operating on the prostate of a patient whose main problem is a very weak bladder may not produce the expected improvement in urinary flow.

Urodynamics can therefore occasionally prevent us from treating the wrong end of the plumbing.

Dysfunctional Voiding

Some patients involuntarily contract their pelvic floor or urinary sphincter while attempting to urinate.

Instead of the outlet opening smoothly, it intermittently closes.

Pelvic floor electromyography may help identify this pattern in selected patients.

Understanding the Urodynamic Tracing

A urodynamic report typically contains several pressure and flow curves.

At first glance, the tracing can resemble an enthusiastic seismograph.

The important measurements usually include:

Pves: pressure measured inside the bladder.

Pabd: pressure measured within the abdomen.

Pdet: pressure generated by the bladder muscle.

Flow: the rate at which urine leaves the bladder.

The relationship between these measurements allows us to understand what is happening during bladder filling and emptying.

Common Findings and What They May Mean for Treatment

Urodynamic Finding Possible Interpretation Potential Treatment Direction
Normal storage and emptying Normal urodynamic study Treatment guided by symptoms and other investigations
Detrusor overactivity Overactive bladder physiology Bladder training, medication, Botox, neuromodulation
Stress leakage Stress urinary incontinence Pelvic floor therapy, bulking agents, sling or other continence surgery
High pressure + low flow Bladder outlet obstruction Treatment of obstruction where appropriate
Low pressure + low flow Detrusor underactivity Emptying strategies, intermittent catheterisation or selected treatments
Poor compliance High-pressure storage Pressure-reducing treatment and upper urinary tract surveillance
Pelvic floor activation during voiding Dysfunctional voiding Pelvic floor physiotherapy/biofeedback
Significant residual urine Incomplete bladder emptying Identify obstruction versus impaired bladder contraction

The urodynamic result is not a treatment plan by itself.

It must be interpreted alongside symptoms, examination findings, bladder diaries, ultrasound, cystoscopy and other investigations where appropriate.

How Urodynamics Can Guide Treatment

If Detrusor Overactivity Is Found

Initial treatment may include:

  • Bladder training
  • Fluid modification
  • Pelvic floor physiotherapy
  • Antimuscarinic medication
  • Beta-3 agonist medication

For persistent symptoms, options may include:

  • Intravesical Botox injections
  • Sacral neuromodulation
  • Other specialist treatments in selected patients

If Stress Incontinence Is Demonstrated

Treatment depends on severity, sex, previous surgery and individual circumstances.

Options may include:

  • Pelvic floor rehabilitation
  • Continence devices
  • Peri-urethral bulking agents
  • Sling procedures
  • Colposuspension in selected women
  • Male sling following prostate surgery
  • Artificial urinary sphincter in appropriate men

If Bladder Outlet Obstruction Is Demonstrated

Treatment depends on the underlying cause.

For benign prostate enlargement, options may include:

  • Medication
  • Minimally invasive prostate treatments
  • Laser prostate surgery
  • Transurethral prostate surgery
  • Other surgical procedures appropriate to prostate size and anatomy

A urethral stricture or bladder neck obstruction requires a different treatment strategy.

If the Bladder Muscle Is Weak

Treatment may involve:

  • Double voiding
  • Timed voiding
  • Reviewing medications
  • Treating reversible causes
  • Intermittent self-catheterisation when necessary
  • Long-term catheterisation in selected circumstances
  • Sacral neuromodulation in carefully selected patients with non-obstructive urinary retention

The key issue is avoiding unnecessary outlet surgery when obstruction is not actually the problem.

If Bladder Storage Pressures Are High

This is particularly important in neurological bladder disease.

Treatment may include:

  • Medication
  • Intermittent catheterisation
  • Intravesical Botox
  • Regular renal imaging
  • Monitoring kidney function
  • Repeat urodynamic assessment
  • Reconstructive bladder surgery in uncommon severe cases

Here the objective extends beyond improving symptoms. We may also be trying to protect kidney function over the long term.

Are Urodynamic Studies Uncomfortable?

Most patients tolerate the investigation well.

Passing the small catheter can cause brief discomfort, and there may be some mild burning when urinating afterwards.

Having an audience while your bladder performs under laboratory conditions is admittedly not anyone’s preferred afternoon entertainment, but the clinical staff performing these studies do this routinely and will make the process as private and comfortable as possible.

Possible Side Effects and Complications

Urodynamic testing is generally safe.

Possible side effects include:

  • Temporary burning during urination
  • Urinary urgency
  • Minor urethral discomfort
  • A small amount of blood in the urine
  • Urinary tract infection
  • Temporary difficulty urinating

Significant complications are uncommon.

Patients should seek medical advice if they develop fever, chills, worsening urinary symptoms, significant bleeding or an inability to urinate following the test.

Does Everyone With Bladder Symptoms Need Urodynamics?

No.

This is an important point.

Urodynamics should generally be performed when the result is likely to answer a clinically relevant question or potentially alter management.

The investigation is particularly valuable when:

  • Symptoms are complex
  • The diagnosis remains uncertain
  • Symptoms and examination findings disagree
  • Previous treatment has failed
  • Neurological bladder dysfunction is suspected
  • There is significant urinary retention
  • Complex surgery is being considered
  • Understanding bladder pressure or contractility could change treatment

Testing simply because “we haven’t done one yet” is not a particularly compelling indication.

Urodynamics: Turning Symptoms Into Physiology

Patients often arrive describing urgency, leakage, poor flow or difficulty emptying their bladder.

These symptoms tell us what is happening.

Urodynamics can sometimes tell us why.

By measuring how the bladder stores and releases urine, we can distinguish between problems involving the bladder muscle, urinary sphincter, pelvic floor and bladder outlet.

Most importantly, urodynamics can help ensure that treatment is directed at the underlying problem rather than simply the symptom.

The Bottom Line

Urodynamics is not necessary for every bladder problem. But when the diagnosis is uncertain or treatment decisions depend on understanding bladder function, it can provide exceptionally useful information.

A good urodynamic study does more than generate graphs.

It helps answer the question that matters most:

What treatment is most likely to work for this particular bladder?

This information is intended for general patient education and does not replace individual medical assessment. The need for urodynamic testing and interpretation of results should be discussed with your treating urologist or continence specialist.

Pelvic Floor Rehabilitation Before and After Prostate Surgery

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Preparing the Pelvic Floor for Recovery

Urinary leakage is one of the most common concerns men have when preparing for prostate surgery, particularly radical prostatectomy for prostate cancer. Fortunately, urinary control usually improves progressively after surgery, and pelvic floor rehabilitation can play an important role in helping men regain continence.

Pelvic floor rehabilitation is more than simply “doing Kegels”. It involves learning which muscles to use, how to contract them correctly, when to relax them, and how to incorporate them into everyday activities.

Importantly, more exercise is not necessarily better. The aim is a pelvic floor that is strong, coordinated and responsive, rather than one that is constantly clenched.

What Is the Male Pelvic Floor?

The pelvic floor is a group of muscles forming a supportive sling beneath the pelvis. These muscles contribute to:

  • urinary continence;
  • bowel control;
  • support of the pelvic organs;
  • sexual function; and
  • control of pressure generated during coughing, lifting and physical activity.

After radical prostatectomy, the anatomy of the urinary continence mechanism changes. The prostate and prostatic urethra are removed and the bladder is reconnected to the remaining urethra. Urinary control consequently becomes more dependent upon the remaining urinary sphincter and its supporting pelvic floor musculature.

This is why pelvic floor rehabilitation is particularly relevant after prostate cancer surgery.

Why Start Pelvic Floor Rehabilitation Before Surgery?

Ideally, pelvic floor rehabilitation begins before the operation.

The principal advantage of pre-operative training is not necessarily building dramatically stronger muscles. Rather, it gives the patient an opportunity to identify and correctly activate the pelvic floor before surgery, when there is no catheter, discomfort or postoperative urinary leakage.

Evidence regarding whether pre-operative pelvic floor muscle training independently improves long-term continence rates is mixed. Current European guidelines conclude that pre-operative training has not consistently demonstrated an additional long-term benefit. However, pelvic floor muscle training after radical prostatectomy may shorten the time taken to recover continence.

For many patients, a consultation with a physiotherapist experienced in men’s pelvic health before surgery is therefore useful.

Finding the Correct Pelvic Floor Muscles

A pelvic floor contraction should feel as though you are trying to:

stop yourself passing wind while simultaneously shortening or drawing the penis slightly inward and lifting the scrotum.

The movement should be subtle.

During the contraction:

  • continue breathing normally;
  • avoid holding your breath;
  • keep the abdomen relatively relaxed;
  • avoid strongly squeezing the buttocks;
  • avoid excessive tightening of the thighs; and
  • completely relax the pelvic floor between contractions.

Some men find the correct muscles immediately. Others inadvertently brace their abdominal, buttock or thigh muscles.

This is one reason why an assessment by a pelvic floor physiotherapist can be valuable.

Should I stop my urine flow to find the muscles?

Stopping the urinary stream once can sometimes help identify the muscles involved, but repeatedly practising pelvic floor exercises by interrupting urination is generally not recommended.

Regularly stopping and starting the stream can interfere with normal bladder emptying.

A Practical Pelvic Floor Exercise Programme

There is no single exercise prescription that is perfect for every man. Pelvic floor strength, endurance, coordination and postoperative continence vary considerably.

A physiotherapist may therefore modify the programme according to your examination and progress.

A typical programme contains several components.

1. Slow contractions: strength and endurance

Gently contract and lift the pelvic floor.

Hold the contraction for approximately:

5–10 seconds

Then relax completely for approximately:

5–10 seconds

Repeat approximately:

8–10 times

The quality of the contraction is more important than achieving a particular number.

If you can only maintain a good contraction for three seconds initially, three good seconds are preferable to ten seconds of straining.

2. Quick contractions

The urinary sphincter also needs to react rapidly.

Contract the pelvic floor firmly for approximately one second, then completely release it.

Repeat:

5–10 times

These faster contractions help train the pelvic floor to respond to sudden increases in abdominal pressure.

3. The “Knack”

One of the most useful techniques is learning to contract the pelvic floor immediately before an activity that normally produces leakage.

For example, gently activate the pelvic floor just before:

  • coughing;
  • sneezing;
  • standing from a chair;
  • bending;
  • lifting;
  • getting out of a car; or
  • performing physical exercise.

This anticipatory contraction is sometimes called the Knack.

It turns pelvic floor training from an isolated exercise into a functional skill.

How Often Should I Exercise?

This is where the principle of quality rather than quantity becomes important.

For many men, a structured programme performed two to three times per day is sufficient during active rehabilitation.

A session might consist of:

8–10 controlled slow contractions followed by 5–10 quick contractions.

However, this should not be regarded as a universal prescription. Your physiotherapist or surgeon may recommend a different programme according to your muscle strength, continence and ability to relax the pelvic floor.

The pelvic floor is skeletal muscle. Like other muscles, it needs work, recovery and progression.

Doing hundreds of contractions every day is rarely necessary.

Can You Do Too Many Pelvic Floor Exercises?

Yes.

One of the common misconceptions after prostate surgery is:

“If ten exercises are good, one hundred must be better.”

Unfortunately, pelvic floor muscles can become fatigued just like any other muscle.

Excessive training or constantly holding the pelvic floor contracted can potentially cause:

  • pelvic or perineal discomfort;
  • difficulty relaxing the pelvic floor;
  • urinary urgency;
  • difficulty starting urination;
  • interrupted urinary flow;
  • a sensation of incomplete bladder emptying;
  • pelvic muscle fatigue; and
  • occasionally worsening leakage later in the day as the muscles tire.

A healthy pelvic floor needs to be able to contract strongly and relax completely.

Continence does not require walking around all day with the pelvic floor permanently switched on.

How Do I Know When I Am Doing Enough?

Your programme is probably adequate when you can:

  • identify the pelvic floor reliably;
  • contract it without excessive abdominal or buttock activity;
  • maintain several controlled contractions without losing strength;
  • completely relax between contractions;
  • activate the muscles quickly before coughing or lifting; and
  • progressively incorporate pelvic floor control into normal activities.

Progress after prostatectomy is often better measured by continence rather than the number of exercises performed.

Useful measures include:

  • number of pads used each day;
  • degree of pad wetness;
  • a 24-hour pad-weight test;
  • leakage during walking or exercise;
  • ability to remain dry overnight;
  • ability to reach the toilet without leakage; and
  • changes over several weeks rather than from one day to the next.

When Should Exercises Restart After Surgery?

Follow the instructions given by your surgeon.

Pelvic floor contractions are usually stopped while the urinary catheter is in place.

Training can generally recommence after catheter removal once your surgical team considers it appropriate. European guidance notes that pelvic floor muscle training is commonly started approximately 7–10 days after catheter removal, although individual postoperative protocols vary.

Early exercises should be gentle.

This is not the time to test how hard you can squeeze.

As healing progresses, the programme can gradually move from basic contractions to functional training while standing, walking, coughing, lifting and exercising.

What Should I Expect After the Catheter Comes Out?

The first few days can be confronting.

Some men have relatively little leakage immediately. Others experience considerable leakage, particularly when:

  • standing;
  • walking;
  • coughing;
  • exercising;
  • getting out of a chair; or
  • becoming tired later in the day.

This does not necessarily predict the final outcome.

Continence often improves substantially during the first weeks and months following radical prostatectomy.

Recovery is a marathon measured in millilitres rather than kilometres.

How Successful Is Pelvic Floor Physiotherapy?

This question is more complicated than it initially appears.

Urinary continence frequently improves naturally following prostatectomy, making it difficult for studies to separate the effect of pelvic floor physiotherapy from normal postoperative recovery.

The research is consequently mixed.

The European Association of Urology notes that systematic reviews and trials suggest pelvic floor muscle training can shorten the time to continence recovery, although the evidence regarding supervised training, biofeedback and additional therapies remains inconsistent.

For example, one randomised study cited by the EAU compared supervised physiotherapist-directed pelvic floor training with verbal and written instructions. At 12 months, complete pad-free continence was reported in 65.2% of the supervised group versus 31.6% of the comparison group. This result should not be interpreted as the expected success rate for every patient, because continence definitions, surgical techniques and rehabilitation programmes differ considerably between studies.

A 2023 Cochrane review was considerably more cautious. After reviewing 25 trials, the authors concluded that uncertainty remains regarding the magnitude of benefit from conservative treatments because studies vary considerably in their techniques, combinations of treatments and methodological quality.

The practical message is therefore:

Pelvic floor rehabilitation is an important first-line treatment and may accelerate recovery, but it cannot guarantee continence.

What If Pelvic Floor Exercises Are Not Working?

Persistent leakage does not automatically mean you need to exercise harder.

If continence is failing to improve, the first question should be:

Why am I leaking?

Post-prostatectomy urinary incontinence may result from:

  • weakness of the urinary sphincter;
  • bladder overactivity;
  • urinary urgency;
  • incomplete bladder emptying;
  • bladder-neck or urethral narrowing;
  • a combination of stress and urgency incontinence; or
  • less commonly, other urinary tract problems.

The AUA guideline emphasises distinguishing stress incontinence, where leakage occurs with coughing, walking, lifting or exertion, from urgency incontinence, where leakage accompanies a sudden compelling desire to urinate.

No amount of extra squeezing will correct every one of these problems.

When Should Further Investigation Be Considered?

Further assessment may be appropriate when urinary leakage is:

  • severe;
  • worsening rather than improving;
  • associated with difficulty urinating;
  • associated with significant urgency or frequency;
  • persistent despite appropriate rehabilitation; or
  • sufficiently troublesome that surgical treatment is being considered.

Assessment may include:

Bladder diary

Records fluid intake, urinary frequency, urinary volumes and leakage episodes.

Pad-weight testing

Provides an objective measurement of the amount of urine being lost.

Urinary flow measurement and bladder ultrasound

Can identify poor urinary flow or incomplete bladder emptying.

Cystoscopy

May be recommended when urethral or bladder-neck pathology is suspected.

Urodynamic studies

Can sometimes help distinguish sphincter weakness from bladder dysfunction when the cause of persistent leakage is uncertain or before further treatment.

What Alternatives Are Available if Physiotherapy Is Not Enough?

Pelvic floor rehabilitation is only one part of managing post-prostatectomy incontinence.

Lifestyle and bladder strategies

These may include:

  • appropriate fluid intake;
  • reducing excessive caffeine;
  • avoiding constipation;
  • weight management where appropriate;
  • bladder training;
  • management of urinary urgency; and
  • modifying activities that provoke significant leakage during early recovery.

Continence pads

Modern male continence pads provide discreet protection while continence is recovering.

Using pads does not mean rehabilitation has failed. They are simply a tool for allowing normal activity during recovery.

Penile compression devices

A penile clamp can temporarily reduce leakage in selected men, although these devices must be fitted and used correctly and released regularly to avoid excessive pressure or tissue injury.

Medication

Medication does not generally correct true post-prostatectomy sphincter weakness.

However, medication may be useful when overactive bladder or urinary urgency contributes significantly to leakage.

Biofeedback

Biofeedback can help some patients understand whether they are contracting the correct muscles and how effectively they are doing so.

Electrical stimulation

Electrical stimulation has also been investigated. Some studies suggest an early benefit when combined with pelvic floor training, although evidence remains inconsistent.

When Is Surgery Considered?

A small proportion of men continue to experience significant stress urinary incontinence despite adequate healing and rehabilitation.

If the leakage remains bothersome, further treatment should be discussed rather than simply continuing increasingly intensive pelvic floor exercises indefinitely.

The two principal surgical options are:

Male Sling

A male sling supports and repositions the urethral continence mechanism.

It is generally most suitable for selected men with mild to moderate stress urinary incontinence and adequate residual sphincter function.

Results tend to be less favourable when incontinence is severe. The AUA guideline specifically notes that male sling outcomes are poorer in men with severe sphincteric incontinence.

Artificial Urinary Sphincter

The artificial urinary sphincter (AUS) remains an important treatment for moderate to severe post-prostatectomy stress urinary incontinence.

A fluid-filled cuff is placed around the urethra and controlled by a small pump positioned within the scrotum. The patient operates the pump when he wishes to urinate.

Both male sling surgery and artificial urinary sphincter implantation can significantly reduce pad use and improve quality of life in appropriately selected men.

When Should I Stop Pelvic Floor Rehabilitation?

There is rarely a precise finishing date.

Once continence has returned and pelvic floor control is good, intensive rehabilitation can usually be reduced.

Many men transition from a rehabilitation programme to a simple maintenance programme, incorporating occasional pelvic floor exercises and functional contractions during activities that generate abdominal pressure.

If you are completely dry, have good pelvic floor control and can cough, lift and exercise without leakage, performing increasingly large numbers of exercises is unlikely to provide additional benefit.

The goal is not to become a professional Kegel athlete.

The goal is normal function.

The Bottom Line

Pelvic floor rehabilitation is an important component of recovery following radical prostatectomy.

Learning the technique before surgery can make it easier to identify and activate the correct muscles after the catheter is removed. Following surgery, a structured programme focusing on strength, endurance, rapid contractions, relaxation and functional activation may help accelerate the return of urinary control. Current evidence supports pelvic floor muscle training as part of postoperative management, while acknowledging that the precise additional benefit of intensive supervised physiotherapy remains uncertain.

Just as importantly, more is not always better. Persistent leakage should not automatically be treated with ever-increasing numbers of pelvic floor contractions.

If urinary incontinence remains troublesome despite appropriate rehabilitation, further assessment can determine whether the problem is persistent sphincter weakness, bladder dysfunction or another cause. Treatments ranging from bladder therapy and medication to a male sling or artificial urinary sphincter can then be considered.

A useful rule

Train the pelvic floor, don’t exhaust it.

Correct technique, consistency and functional control matter far more than the number of contractions performed.

This information is intended for general patient education and does not replace individual medical advice. The timing and intensity of pelvic floor rehabilitation should be discussed with your surgeon and/or a physiotherapist experienced in male pelvic health.