Urinary incontinence is when there is involuntary leakage of urine due to loss of support of the urethra or from uninhibited contractions of the bladder muscle. The amount of leakage can be quite small, for example when one coughs or laughs. However, the amount of leakage can be extreme when there is complete inability to control the bladder muscle.
The most common causes for women to have urinary leakage include hormone changes, childbirth, hysterectomy, obesity and even smoking.
Men are also affected, usually because of coexisting conditions such as prostate cancer (and its treatments), strokes, multiple sclerosis and other medical issues.