In 1977, a census of 57,292 people in 18 provinces, municipalities and autonomous regions nationwide showed that the incidence of anorectal disease was 59%, 67% for women and 53.9% for men, with women having a 13.1% higher incidence than men. Why do women suffer more from anorectal disease? This is because women have more chances to have their pelvic organs compressed and blood flow obstructed in the course of life, which constantly causes pelvic organ congestion and bruising and affects the blood circulation of the anus; the rectum is compressed, so that the passage of feces is obstructed and defecation is not smooth. These are all factors that induce the onset of anal disease. Menstruation and pregnancy can increase the burden on the anus. Some women often have prolonged intervals between bowel movements during menstruation or pregnancy, with bowel movements every 2 to 3 days, resulting in difficulty in defecation. In the second trimester of pregnancy, the enlarged fetus presses on the rectum, which not only makes defecation difficult, but also obstructs the venous blood flow back to the rectum and anus, which not only makes hemorrhoids easier to occur, but also further aggravates the existing hemorrhoids. After delivery, the abdominal cavity is empty and the sense of defecation becomes sluggish, coupled with the reduced activity of the flaccid abdominal wall, the symptoms of weakness and difficulty in defecation increase, and there are often no defecation symptoms for several days. The feces stays in the intestine for too long and is highly hardened, and as a result, strong defecation can damage the anorectum causing anorectal disease. In addition to the above-mentioned pregnancy and childbirth women, when women reach menopause, most of their muscles become flaccid and weak, and the tissues related to anal function such as sphincter, anal raphe, and puborectal muscle also become weak and anal function decreases. At the same time, endocrine and neurological dysfunctions often occur in women during menopause, making them irritable and feeling like they can’t finish their bowel movements, resulting in frequent trips to the toilet, which is also a trigger for anal disease.