Causes and Risk Factors
Urinary incontinence develops due to physiological changes, medical conditions, and lifestyle factors affecting bladder function and urinary control mechanisms.
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Weakened pelvic floor muscles
These muscles support the bladder and urethra, and when weakened by childbirth, surgery, or ageing, they cannot properly control urine flow.
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Pregnancy and childbirth
Hormonal changes and increased pressure on the bladder during pregnancy can lead to stress incontinence. Vaginal delivery may damage nerves and supportive tissues, potentially causing long-term incontinence issues.
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Ageing
The bladder muscle weakens with age, reducing its capacity to store urine and increasing the likelihood of involuntary contractions. Ageing also causes structural changes in the urinary tract that affect continence.
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Menopause
Decreased oestrogen levels can lead to deterioration of the urethral and vaginal tissues, affecting bladder control. These hormonal changes may exacerbate existing urinary tract conditions.
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Prostate issues
Enlargement or surgery of the prostate gland in men can cause urinary incontinence. Prostate cancer treatments, including radiation and surgery, may damage sphincter muscles or nerves controlling urination.
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Neurological disorders
Conditions like multiple sclerosis, Parkinson’s disease, stroke, spinal injury, or diabetes can interfere with nerve signals involved in bladder control. This disruption affects the coordination between the brain and bladder.
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Urinary tract infections
Inflammation and irritation from infections can cause urinary urgency and incontinence. Recurrent infections may lead to chronic bladder instability.