Final answer:
Urinary incontinence is a chronic problem of uncontrolled leakage of urine, which is common in older age and women. It has different causes in men and women, such as an enlarged prostate gland in men and pelvic floor muscle stretching during childbirth in women.
Step-by-step explanation:
Urinary incontinence is a chronic problem of uncontrolled leakage of urine. It is very common, especially at older ages and in women. In men, urinary incontinence is usually caused by an enlarged prostate gland. In women, it is usually caused by stretching of pelvic floor muscles during childbirth (stress incontinence) or by an "overactive bladder” that empties without warning (urge incontinence).