Pregnancy and childbirth lead to the weakness of pelvic floor support system and the insufficiency of muscle inclusion function. The incidence rate of postpartum women is about 30%. The risk of illness gradually increases with age. The incidence rate of middle-aged and elderly people over 50 is nearly 60%. Chronic urinary incontinence can cause vulvar inflammation, itching, body odor and even infection, and is known as "social cancer".