Urinary Incontinence: Types, Diagnosis and Treatment

If you are trying to work out why you are leaking right now and whether it is urgent, see leaking urine: causes and red flags.

How bladder control works

The bladder is a muscular bag that stores urine at low pressure. Control depends on:

• the detrusor muscle in the bladder wall staying relaxed while filling, then contracting to empty
• the urethral sphincter and pelvic floor muscles staying closed during storage, especially when pressure in the belly rises with a cough or lift
• nerves between the bladder, spinal cord and brain that coordinate these actions

Incontinence occurs when any part of this system fails.

Types of urinary incontinence

Causes and risk factors

• Pregnancy and vaginal childbirth, especially large babies and forceps deliveries
• Menopause and loss of estrogen
• Age: bladder capacity and muscle strength fall
• Obesity: each extra pound raises pressure on the pelvic floor; losing 5 to 10 percent of body weight reduces leaks
• Pelvic organ prolapse and cystocele
• Prostate problems: enlarged prostate and prostate cancer treatment
• Neurological disease: stroke, MS, Parkinson's disease, spinal cord injury, diabetes (neurogenic bladder)
• Smoking and chronic cough, constipation and high-impact sport
• Medicines: diuretics, sedatives, alpha blockers in women, and some antidepressants

Diagnosis

1. History and bladder diary: a 3-day record of fluid intake, voiding times and volumes, and leaks.
2. Urinalysis to look for infection, blood and glucose.
3. Physical exam: abdomen, pelvic exam in women (prolapse, vaginal atrophy, a cough stress test), prostate exam in men, and a neurological check.
4. Post-void residual: an ultrasound scan after urinating to check emptying.
5. Questionnaires that score symptoms and bother.
6. Urodynamic studies: measure bladder pressures during filling and emptying. Used before surgery when the type is unclear, or after failed treatment, not routinely.
7. Cystoscopy if there is blood in the urine or suspicion of other problems.

Treatment

Lifestyle measures (all types)

• Drink about 6 to 8 cups of fluid a day: not too much, not too little.
• Reduce caffeine, alcohol and fizzy drinks.
• Lose weight if overweight.
• Stop smoking and treat chronic cough.
• Prevent constipation.

Pelvic floor muscle training

Supervised pelvic floor training for at least 3 months is the first-line treatment for stress and mixed incontinence in women, and helps men after prostate surgery. Done correctly, it improves or cures leaking in many people. A pelvic floor physical therapist confirms you are contracting the right muscles and builds a program, sometimes with biofeedback or electrical stimulation.

A typical program: at least 8 contractions held for up to 10 seconds, 3 times a day, plus quick squeezes, and "the knack": a strong squeeze just before you cough or lift.

Bladder training (urge incontinence)

Urinate on a schedule and gradually lengthen the intervals, using urge-suppression techniques: stop, stand still, squeeze the pelvic floor several times and breathe slowly until the urge passes, then walk calmly to the toilet. Aim to go every 3 to 4 hours over 6 weeks or more.

Medicines

• For overactive bladder and urge incontinence: beta-3 agonists (mirabegron, vibegron) or antimuscarinics (such as oxybutynin, solifenacin, tolterodine). Antimuscarinics can cause dry mouth and constipation and are linked to confusion in older adults, so beta-3 agonists are often preferred for them.
• Vaginal estrogen improves urgency and recurrent infections after menopause.
• For men with prostate enlargement: alpha blockers and 5-alpha-reductase inhibitors.

Devices

• Vaginal pessaries and incontinence inserts support the urethra or a prolapse.
• Penile clamps and external catheters for some men.
• Intermittent self-catheterization for overflow incontinence.

Procedures and surgery

• Stress incontinence in women: midurethral sling (synthetic tape), autologous fascial sling, colposuspension, or urethral bulking injections. The mesh sling remains effective and widely used in the US, though some countries restrict mesh use; discuss the risks and alternatives with your surgeon.
• Stress incontinence in men: male sling or artificial urinary sphincter after prostate surgery.
• Refractory overactive bladder: botulinum toxin injections into the bladder, sacral neuromodulation, or percutaneous tibial nerve stimulation.

Complications

• skin irritation, rashes and infections from constant wetness
• recurrent urinary tract infections
• falls and fractures from rushing to the toilet at night
• reduced exercise, social isolation, anxiety and depression, and effects on sex and relationships

Living with urinary incontinence

Many people delay seeking help for years out of embarrassment. Incontinence is a medical condition, not a normal part of aging, and treatment works for most people. Practical steps help in the meantime: purpose-made pads and pants, skin barrier creams, a clear path and night light to the bathroom, and clothing that is easy to remove.

Prevention

Pelvic floor exercises during pregnancy and after birth reduce the risk of incontinence. Maintaining a healthy weight, not smoking, avoiding constipation and staying active also lower risk.

Frequently asked questions

What are the 4 main types of urinary incontinence?

The main types are stress incontinence (leaking with effort), urge incontinence (leaking with a sudden strong urge), overflow incontinence (dribbling from a bladder that does not empty) and functional incontinence (being unable to reach the toilet in time). Mixed incontinence combines stress and urge.

What is the best treatment for urinary incontinence?

For stress incontinence, supervised pelvic floor muscle training for at least 3 months is the first-line treatment, with surgery if needed. For urge incontinence, bladder training and lifestyle changes come first, then medicines or procedures. The right treatment depends on the type.

Do Kegel exercises really work for incontinence?

Yes, when done correctly and consistently for at least 3 months. Pelvic floor muscle training is the most effective first treatment for stress incontinence and helps urge and mixed incontinence. A pelvic floor physical therapist makes them more effective.

What causes urinary incontinence in women?

The main causes are pregnancy and childbirth, menopause, obesity, pelvic organ prolapse, overactive bladder, and chronic coughing or straining. Urinary tract infections and some medicines cause temporary incontinence.

What causes urinary incontinence in men?

In men, the most common causes are an enlarged prostate, which leads to urgency and overflow, and prostate cancer surgery or radiotherapy, which can cause stress incontinence. Overactive bladder and neurological conditions such as stroke and Parkinson's disease are other causes.