Urinary sphincter problems in men: causes and solutions

Male urinary incontinence affects nearly 10 to 15% of men after age 60, changing the day-to-day lives of millions of people. At the center of this issue is often a dysfunction of the urinary sphincter, an essential muscle that acts like a valve to control the flow of urine. Far from being an inevitable part of aging, sphincter-related problems can now be treated effectively, with success rates reaching up to 90% depending on the treatment chosen.

If you experience urine leakage, especially during physical effort, coughing, or sneezing, your urinary sphincter may be involved. While this can feel difficult to talk about, it deserves your full attention because real solutions exist, from pelvic floor therapy to advanced surgical procedures. The key is to understand that you are not alone, and that the right care plan can significantly improve your quality of life.

How does the male urinary sphincter work?

The male sphincter system is a remarkably precise anatomical mechanism that ensures urinary continence 24 hours a day. Contrary to common belief, it is not a single muscle but a complex system made up of two complementary sphincters that work together in synergy.

The smooth sphincter (or internal sphincter) is located at the bladder neck. Made of involuntary muscle fibers, it maintains constant contraction without any conscious effort on your part. It provides passive continence, especially during sleep. In men, its key characteristic is its immediate proximity to the prostate, which explains why prostate issues can directly affect how it works.

The striated sphincter (or external sphincter) surrounds the urethra at the level of the pelvic floor. Made of voluntary muscle fibers, you can control it consciously. It is the muscle you tighten when you try to hold back urine. About 0.8 to 1.2 inches thick (2 to 3 cm) in men, it forms a powerful ring capable of maintaining a closing pressure higher than bladder pressure, even during significant effort.

Coordination between these two sphincters and the bladder follows a sophisticated neurological mechanism. As the bladder fills, sensory receptors send signals to the brain through the spinal cord. In response, the nervous system keeps the sphincters closed and inhibits bladder contractions. When you decide to urinate, the brain reverses the process: the sphincters relax while the detrusor muscle of the bladder contracts to expel urine.

This coordination differs significantly from the female system. In men, the urethra is about four times longer (around 8 inches, or 20 cm, compared with about 1.6 inches, or 4 cm in women), providing greater natural resistance. In addition, the prostate, located between the two sphincters, offers extra mechanical support. This anatomical configuration explains why urinary incontinence is about three times less common in younger men than in women of the same age.

The main causes of a weakened sphincter

Sphincter dysfunction in men can result from a variety of mechanisms that affect either anatomical structure or neurological control of these essential muscles.

Surgical causes: the major impact of prostatectomy

Radical prostatectomy, performed as part of prostate cancer treatment, is the leading cause of sphincter insufficiency in men. According to data from the French Urological Association (AFU, 2024), about 70% of patients experience temporary incontinence in the weeks following surgery. This incontinence results from several factors: the close anatomical relationship between the prostate and the smooth sphincter, which is inevitably affected during removal; changes to urethral anatomy that disrupt continence mechanisms; and sometimes nerve injury despite nerve-sparing techniques.

Fortunately, spontaneous recovery is the norm: 76% of patients regain satisfactory continence by 3 months and 90% by one year according to Professor René Yiou, a specialist in functional urology. Pelvic surgeries (rectum, bladder) can also compromise sphincter integrity, with incontinence rates ranging from 5 to 15% depending on the procedure.

Neurological causes: when the control system fails

Neurological conditions disrupt signal transmission between the brain, spinal cord, and sphincters. Diabetes, affecting millions of people, causes peripheral neuropathy in about 30% of cases after 10 years of disease. This nerve damage leads to a gradual loss of sphincter control, often insidious and bilateral.

Parkinson’s disease affects sphincter control in about one-third of patients according to the EM Consulte study (2024). Damage to the basal ganglia disrupts bladder-sphincter coordination, leading either to overactive bladder (70% of cases) or to dyssynergia with impaired sphincter relaxation.

Stroke can cause urinary leakage in 40% of patients in the acute phase, according to Progrès en Urologie (Ruffion and Chartier-Kastler, 2007). The location of the lesion determines the type of dysfunction: frontal strokes more often cause urge incontinence, while pontine lesions can lead to retention with overflow incontinence.

Traumatic spinal cord injuries, with thousands of new cases each year, systematically cause sphincter disorders, with the pattern depending on the level of injury. Above T12, hyperreflexia with detrusor-sphincter dyssynergia is often seen; below that level, areflexia with a flaccid sphincter is more typical.

Mechanical causes: natural wear and trauma

Natural aging causes progressive sarcopenia that also affects the sphincter muscles. After age 70, sphincter contraction strength decreases by about 1 to 2% per year, while maximum contraction time decreases by about 30% between ages 50 and 80. These changes help explain the sharp increase in incontinence with age: 3% at age 50, 10% at age 70, and up to 30% after age 85.

Perineal trauma, whether sports-related (intense cycling, horseback riding) or accidental (pelvic fracture), can directly damage the sphincter structures or their nerve supply. Pelvic fractures with pubic symphysis disruption lead to incontinence in about 15% of cases, often requiring surgical reconstruction.

Medication-related causes: overlooked side effects

Some medications can subtly impair sphincter function. Alpha-blockers (tamsulosin, alfuzosin), commonly prescribed for benign prostatic hyperplasia, relax the bladder neck but can paradoxically trigger stress incontinence in 5 to 10% of patients. Muscle relaxants (baclofen, tizanidine) reduce sphincter tone by 20 to 40%, which can be especially problematic in older adults. Antipsychotics and certain antidepressants can disrupt bladder-sphincter coordination through anticholinergic effects, while diuretics increase the functional load on a potentially fragile sphincter.

Symptoms of sphincter dysfunction

Recognizing the signs of a weakened sphincter helps guide people toward appropriate care sooner. Symptoms vary in intensity and presentation depending on the underlying mechanism.

Stress incontinence: the hallmark sign

Stress urinary incontinence is the most characteristic manifestation of sphincter insufficiency. It presents as involuntary urine leakage without a preceding urge, triggered by activities that increase abdominal pressure. Triggers often follow a typical progression: initially during major effort (lifting heavy objects, jumping), then during moderate effort (climbing stairs, brisk walking), and eventually during minimal effort (coughing, sneezing, laughing).

The amount of leakage can range from a few drops to several teaspoons depending on severity. One key diagnostic clue: leakage stops immediately once the effort stops, unlike urge incontinence where emptying may continue. Using a washable men’s incontinence boxer brief often becomes necessary to manage daily leakage, especially during physical activity.

Post-void dribbling: a male-specific issue

Post-void dribbling, affecting about 40% of men after age 50, results from incomplete emptying of the bulbar urethra. After urinating, a small amount of urine remains trapped and leaks out in the minutes that follow, staining underwear. While this is uncomfortable, it reflects urethral drainage issues more than true sphincter insufficiency, although the two can occur together.

Mixed incontinence: a more complex clinical picture

Combining stress incontinence with overactive bladder affects about 35% of men with sphincter dysfunction. This more complex form includes leakage with effort along with urinary urgency and urge leakage. Patients typically describe losing urine when coughing but also experiencing frequent, urgent needs to urinate (more than 8 times per day), sometimes being unable to reach the bathroom in time.

Natural progression: understanding how it evolves

Without treatment, sphincter insufficiency usually progresses over time. The initial phase, often unnoticed, involves occasional leakage during significant effort, easily managed with light protection. The established phase includes more frequent and larger leaks, requiring regular absorbent protection. The advanced phase may involve constant leakage even at rest, with a major impact on quality of life: limiting social activities, work, and intimacy.

Aggravating factors include weight gain (each extra pound increases abdominal pressure and strain), chronic constipation (repeated straining), recurrent urinary tract infections (sphincter inflammation), and paradoxically, excessive fluid restriction, which concentrates urine and irritates the bladder.

Diagnosing sphincter problems

A thorough evaluation is essential to accurately characterize sphincter dysfunction and guide the best treatment strategy.

The initial consultation: a crucial first step

The medical interview carefully explores the history of incontinence: how it started (after surgery, gradual, sudden), triggers, frequency, and volume of leaks. A 3-day voiding diary, recommended by health authorities, helps document patterns objectively: daytime and nighttime urination frequency, volumes, leakage episodes and their triggers, and fluid intake. This often reveals unexpected issues.

The physical exam begins with a perineal inspection to look for muscle atrophy or scars. The digital rectal exam is a key moment: it assesses anal sphincter tone (often correlated with urethral tone), the quality of voluntary contraction, and in men, prostate size and consistency. A cough stress test with a full bladder, performed standing then lying down, helps confirm stress leakage and its severity.

Urodynamic testing: the reference exam

This functional test, performed in a specialist setting, measures bladder and sphincter pressures. Initial uroflowmetry records maximum flow rate (normal > 15 mL/s) and voided volume. Cystometry evaluates bladder compliance and detects detrusor overactivity. Urethral pressure profilometry measures maximum urethral closure pressure (MUCP), normally above 50 cmH2O in men. An MUCP below 30 cmH2O indicates severe sphincter insufficiency.

Perineal electromyography, paired with urodynamics, analyzes the electrical activity of the external sphincter, detecting detrusor-sphincter dyssynergia or denervation. According to the AFU study (2024), this testing changes the treatment strategy in 40% of complex male incontinence cases.

Specific additional tests

Pelvic ultrasound with post-void residual measurement (normal < 50 mL) checks for chronic, hidden retention. Cystoscopy, indicated in cases of blood in the urine or suspected urethral stricture, directly visualizes the urethra and bladder neck. Pelvic MRI, especially with dynamic sequences, provides a detailed analysis of sphincter anatomy and identifies surgical or traumatic sequelae.

A 24-hour pad weight test objectively quantifies leakage: mild (< 50 g/24h), moderate (50 to 200 g/24h), severe (200 to 500 g/24h), or very severe (> 500 g/24h). This classification guides treatment choice and helps measure treatment effectiveness.

Validated scores and questionnaires

The ICIQ-SF (International Consultation on Incontinence Questionnaire - Short Form), validated internationally, assesses quality-of-life impact in 4 questions (score 0 to 21). A score above 12 indicates severe impact and justifies specialist care. The Stamey score classifies stress incontinence into 3 grades based on when leakage occurs, helping guide surgical indications.

Conservative treatments for a weakened sphincter

Pelvic floor and sphincter rehabilitation is the first-line treatment, with excellent success rates when done correctly.

Pelvic floor therapy: the cornerstone of treatment

According to the French National Authority for Health (HAS, 2022), pelvic floor therapy significantly improves continence in 60 to 70% of men with moderate sphincter insufficiency. A standard plan includes 15 to 20 sessions over 3 to 6 months, ideally started before surgery for planned prostatectomies.

Kegel exercises form the foundation of muscle training. Correct technique requires precise instruction: identifying the muscle by briefly stopping the urine stream (a one-time test, not repeated), isolating the contraction without engaging the glutes or abdominals, holding for 5 seconds then relaxing for 10 seconds. The program typically progresses from 3 sets of 10 contractions per day initially to 3 sets of 20 contractions with 10-second holds after 6 weeks. Learning to reflexively tighten the pelvic floor before effort (coughing, lifting) can effectively prevent leaks.

Biofeedback: seeing control to build control

This technique uses an anal sensor with pressure detectors that converts muscle contractions into visual or audio signals. The patient sees the quality of contraction in real time on a screen, allowing immediate correction of errors (paradoxical pushing, unwanted co-contractions). Studies show an 85% improvement in muscle strength after 3 months of biofeedback, compared with 65% with exercises alone (Kinésithérapie Magazine, 2023).

Functional electrical stimulation: reactivating weakened muscles

Low-frequency currents (10 to 50 Hz) stimulate sphincter muscle fibers through an anal probe. This approach is especially helpful when voluntary contraction is not possible (muscle score < 2/5) or after surgical denervation. A typical protocol includes two 20-minute sessions per week for 3 months. Combining stimulation with active exercises increases success rates by about 20% compared with exercises alone.

During this rehabilitation phase, wearing a washable incontinence underwear provides discreet, comfortable protection and helps you maintain daily activities without fear of leakage. These technical underwear options, washable up to 300 times, can absorb up to 300 mL while preserving comfort and dignity.

Supportive behavioral techniques

Adjusting fluid intake can improve symptoms: 50 to 67 fl oz (1.5 to 2 liters) per day, mostly earlier in the day (about 70% before 4 PM), while limiting bladder irritants (coffee, tea, alcohol). Scheduled voiding every 2 to 3 hours helps prevent excessive bladder distension. Weight management reduces abdominal pressure: losing about 11 lb (5 kg) can reduce leakage episodes by around 30% in people who are overweight. Treating constipation with a fiber-rich diet (25 to 30 g/day) and gentle laxatives helps avoid repeated straining that can weaken the pelvic floor.

Medication options

Medication has a limited role in true sphincter insufficiency, but it can provide meaningful improvement in certain situations.

Duloxetine: increasing sphincter tone

This serotonin-norepinephrine reuptake inhibitor increases external sphincter tone through an effect on spinal pathways. At a dose of 40 mg twice daily, it reduces incontinence episodes by 50% in about 60% of patients in clinical studies. However, side effects (nausea 25%, fatigue 15%, dry mouth 10%) limit long-term use. In France, it does not have specific approval for this indication but may be prescribed off-label after pelvic floor therapy failure.

Anticholinergics: treating the bladder component

When overactive bladder is associated with sphincter insufficiency (mixed incontinence), anticholinergics can help. Oxybutynin (5 mg 2 to 3 times daily), tolterodine (2 to 4 mg daily), or solifenacin (5 to 10 mg daily) reduce involuntary bladder contractions. Effectiveness for urgency symptoms can reach 70%, but these medications do not improve pure stress incontinence. Anticholinergic side effects (dry mouth, constipation, cognitive effects in older adults) require monitoring.

Treating specific causes

In diabetes, optimal glucose control (HbA1c < 7%) slows neuropathy progression. Alpha-blockers in benign prostatic hyperplasia can improve overflow-related leakage in some cases. Levodopa and dopamine agonists in Parkinson’s disease may improve bladder-sphincter coordination.

New pharmacological approaches

Intra-sphincter botulinum toxin injections, currently under evaluation, may help treat detrusor-sphincter dyssynergia. Beta-3 adrenergic agonists (mirabegron 50 mg daily) offer an alternative to anticholinergics with fewer side effects. Potassium channel modulators and phosphodiesterase-5 inhibitors are also being explored to increase sphincter tone.

Surgical solutions

When conservative treatments fail after 6 to 12 months of well-conducted therapy, surgery can provide effective and durable solutions.

Male slings: a minimally invasive option

This technique involves placing a synthetic sling under the bulbar urethra to support and compress it, recreating a continence zone. The procedure, performed under local or general anesthesia, takes about 30 minutes with a 24-hour hospital stay. Success rates range from 60 to 80%, with the best results in men with mild to moderate incontinence (< 200 g/24h).

Complications are uncommon: infection (2%), temporary urinary retention (5%), urethral erosion (1%). Adjustable slings allow postoperative tension adjustments to optimize outcomes. During the 4 to 6 week recovery period, wearing a high-absorbency men’s leak-proof brief provides reliable protection.

The AMS800 artificial urinary sphincter: the gold standard

Considered the reference treatment for severe incontinence, the artificial urinary sphincter replicates natural sphincter function. The device includes three components: a cuff placed around the urethra to compress it, a pressure-regulating balloon placed in the prevesical space, and a control pump positioned in the scrotum.

According to a study in Neurourology and Urodynamics (Herschorn et al., 2010), success rates reach 90 to 95% with 10-year follow-up. Social continence (0 to 1 pad per day) is achieved in 85% of patients. The procedure is more complex, lasting 60 to 90 minutes under general anesthesia with a 3 to 5 day hospital stay.

Specific complications include mechanical failure (2 to 3% per year), infection (3 to 5%), and urethral erosion (5% at 5 years). Revision surgery is needed in about 30% of patients by 10 years, typically to replace worn components. The device is expensive (approximately $8,000 to $12,000), and coverage depends on the health system and insurance.

ACT periurethral balloons: an adjustable option

The ACT (Adjustable Continence Therapy) system consists of two balloons placed on either side of the proximal urethra, progressively compressing it. The major advantage is postoperative adjustability: the balloons can be inflated or deflated percutaneously based on the patient’s needs. With a success rate of 60 to 70%, it is an interesting option between a sling and an artificial sphincter.

Emerging techniques

Mesenchymal stem cells injected into the sphincter show promising early results, with about 70% improvement in preliminary studies. Remote-controlled electronic artificial sphincters are being developed to offer more physiologic control. Sacral neuromodulation, effective in overactive bladder, is also finding new applications in complex mixed incontinence.

Living day to day with a weakened sphincter

Lifestyle adjustments and the use of appropriate protection can help maintain quality of life while awaiting or complementing treatment.

Smart fluid management

Hydration control follows practical rules: maintain adequate intake (about 50 to 67 fl oz, or 1.5 to 2 liters per day) to avoid concentrated, irritating urine; drink earlier in the day (around 70% before 4 PM) to reduce nighttime urination; avoid diuretic beverages (coffee, tea) after 2 PM. Stopping fluids about 2 hours before bedtime can reduce nighttime trips to the bathroom by up to 50%.

Pelvic floor “locking” techniques

Anticipating effort with a preventive pelvic floor contraction can become a helpful reflex. Before coughing, sneezing, or lifting something heavy, a 2 to 3 second contraction can prevent leakage. This technique, often called “The Knack,” can reduce stress leaks by up to 75% when properly learned. Squatting rather than bending forward to pick something up reduces abdominal pressure significantly.

Choosing protection based on activity

Matching protection to the situation improves comfort and confidence. For daily life with light leaks (< 50 mL), a thin male incontinence pad may be enough. Sports and physical activity often require more secure support, such as leak-proof boxer briefs that combine hold and absorption up to around 200 mL. Long outings (travel, events) may justify higher-capacity protection (300 to 500 mL) for maximum peace of mind.

Washable absorbent underwear is a modern solution that combines effectiveness and discretion. Compared with disposable pads, it often better supports self-esteem because it looks like regular underwear. While the upfront cost (about $30 to $60) is higher, it can pay for itself in 2 to 3 months compared with disposables (often $50 to $150 per month).

Psychological impact and support

Male incontinence is still taboo for many, leading to social isolation and emotional distress in about 40% of patients. Communication with a partner is essential: many partners want to be informed and involved in the care plan. Support groups can also help people share experiences and practical solutions.

Sex life, often affected, can be protected with simple measures: emptying the bladder before sex, using protection for small leaks when needed, and choosing positions that reduce abdominal pressure. Specialized counseling can help many couples restore a satisfying intimacy.

Preventing sphincter problems

A preventive approach can significantly reduce the risk of developing sphincter insufficiency.

Preventive exercises starting around age 45

Practicing Kegel exercises before symptoms appear helps maintain sphincter tone. Five minutes a day can be enough: 3 sets of 10 contractions with gradually longer holds. Men who practice these preventive exercises may be less likely to develop incontinence later in life according to certain training and education sources.

Preparation before prostate surgery

Preoperative pelvic floor therapy, started 4 to 6 weeks before prostatectomy, can significantly improve outcomes. Patients who prepare often regain continence faster: about 45% are continent at 1 month versus 20% without preparation. A typical program includes learning correct contraction with biofeedback, progressive strengthening up to 50 contractions per day, and automating pelvic “locking” during effort.

Maintaining a healthy weight

Every meaningful reduction in BMI can reduce incontinence risk. Abdominal pressure increases with excess weight, placing constant strain on the sphincter. A BMI under 25 kg/m² is often recommended, supported by balanced nutrition and regular physical activity (about 150 minutes per week of moderate-intensity exercise).

Preventing chronic constipation

Repeated straining during bowel movements can gradually stretch and weaken pelvic floor structures. A fiber-rich diet (25 to 30 g/day) from fruits, vegetables, and whole grains, adequate hydration (about 50 to 67 fl oz per day), and regular physical activity help maintain normal bowel habits. A more physiologic toilet posture (feet elevated) can make bowel movements easier with less strain.

Conclusion: getting back to a normal life is possible

Urinary sphincter problems in men are not a life sentence. Today, they can be effectively managed with a complete, personalized range of treatments. From pelvic floor therapy, which can help in about 70% of moderate cases, to advanced surgical options like the artificial urinary sphincter with 90 to 95% success rates, most men can find a solution that fits their situation.

The most important step is not to stay silent or resigned. Early consultation not only helps identify the exact cause of sphincter dysfunction, but also makes it possible to start an appropriate treatment plan sooner. Ongoing medical progress, including less invasive techniques and increasingly discreet, effective protection options, offers encouraging prospects.

Do not forget that during your care journey, practical solutions exist to maintain your quality of life. Modern absorbent underwear, including washable bamboo options, can combine effective protection up to 300 mL with a discreet look. Available in sizes S to 8XL, they fit many body types and help you continue daily life with greater peace of mind.

Your urologist, supported by a multidisciplinary team that may include a specialized physical therapist and sometimes a psychologist, can guide you toward the most suitable option. With patience, consistent exercises, and support from loved ones, regaining satisfactory continence is a realistic goal for the vast majority of men affected by sphincter-related issues.

Incontinence is not an ending. It is a step toward recovery. Make an appointment today and take back control of your life.