Urinary incontinence after sexual life is mainly due to problems in the structure and function of tissues and organs and the influence of diseases. Women's urethra and the bottom of bladder are close to vagina, which are easily stimulated by external pressure and physical factors. When sexual desire is excited and the sexual organs are congested, the intra-abdominal pressure will increase significantly. If the sphincter function declines, the urine in the bladder is not emptied before sexual life, and the lower abdomen is under external pressure, and the urine will flow out on its own.

Some middle-aged women are infected with the urinary system because they don't pay attention to hygiene in their sexual life, which can also cause this phenomenon. Moreover, menopausal women will have urinary incontinence because of less estrogen, vaginal atrophy and excessive urinary tract involvement during sexual life.