Overview
Urinary incontinence is the involuntary leakage of urine. Stress incontinence (leakage with coughing, sneezing, or exercise) and urgency incontinence (sudden strong urge to urinate that cannot be controlled) are the two most common types. It is extremely common but significantly under-reported due to embarrassment. Effective treatments are available.
How common is it?
Urinary incontinence affects around 1 in 3 women and 1 in 10 men in the UK at some point. It is the most common condition not discussed with doctors due to embarrassment. Prevalence increases significantly with age.
Causes and risk factors
Stress incontinence results from weakened pelvic floor muscles or urethral sphincter. Urgency incontinence results from overactive bladder contractions. Mixed incontinence involves both mechanisms.
Common risk factors
- Stress incontinence: pregnancy, childbirth (particularly vaginal delivery, prolonged labour), menopause (oestrogen loss), obesity, chronic cough, heavy lifting
- Urgency incontinence: overactive bladder, neurological conditions (MS, Parkinson's, stroke), UTI, bladder irritants (caffeine, alcohol)
- Male: prostate surgery, BPH
- Overflow incontinence: urinary retention from BPH, neuropathy
- Medications: diuretics, ACE inhibitors (cough), alpha-blockers
Symptoms
- Leakage of urine when coughing, sneezing, laughing, or exercising (stress)
- Sudden strong urgency to urinate with inability to reach the toilet in time (urgency)
- Mixed: both stress and urgency symptoms
- Frequent urination (more than 8 times per day)
- Nocturia (waking more than twice to urinate)
When to see a doctor
See a GP — incontinence is a medical condition with effective treatments. It should not be accepted as a normal part of ageing or childbearing. Also seek assessment for incontinence that suddenly worsens, is associated with pain, blood in urine, or neurological symptoms.
Diagnosis
Bladder diary (3 days) quantifies frequency and leakage. MSU to exclude UTI. Post-void residual measurement. Urodynamic studies for complex cases. Pelvic floor examination.
Treatments
Pelvic floor muscle training (PFMT)
The first-line treatment for stress and mixed incontinence. Supervised PFMT (Kegel exercises performed correctly) for at least 12 weeks reduces leakage significantly in 70 to 80% of women. Must be performed with correct technique — most women do not do them correctly without guidance.
Bladder training
For urgency incontinence: progressively increasing the interval between voiding urges over 6 to 8 weeks. Reduces urgency and frequency significantly.
Anticholinergic and beta-3 agonist medication
Oxybutynin, solifenacin, or mirabegron reduce overactive bladder contractions for urgency incontinence. Mirabegron (beta-3 agonist) has fewer dry mouth side effects than anticholinergics and is preferred in older adults.
Surgical treatments
Mid-urethral sling for stress incontinence — very effective. Colposuspension. Botulinum toxin injection into the bladder for refractory urgency incontinence. Sacral nerve stimulation for overactive bladder.
Self-care and lifestyle
- Reduce caffeine and alcohol intake (bladder irritants)
- Maintain healthy weight (obesity significantly worsens incontinence)
- Avoid constipation (increases pelvic floor pressure)
- Wear absorbent pads temporarily while treatment takes effect
Prevention
Pelvic floor exercises during and after pregnancy reduce postpartum stress incontinence. Maintaining a healthy weight, treating constipation, and avoiding straining at stool protect pelvic floor integrity.