1, bad defecation habits: squatting position when reading a book and newspaper, resulting in squatting and prolonged defecation time, easy to cause stasis of blood in the anorectum and induce disease. Smoking when going to the toilet can buffer the brain’s defecation reflex, which is very likely to cause constipation. 2, defecation abnormalities: diarrhea and constipation are important factors in the development of anorectal diseases. Constipation is the biggest bane, long-term retention of toxic substances in the rectum can not only induce rectal cancer, and the accumulation of feces, affecting blood circulation. The effort to solve the dry stool will certainly put the anus under greater pressure and produce a series of pathological changes such as stasis, swelling and fissure. 3, dietary factors: daily life, dietary patterns or diet varieties inevitably change, which is very natural. Such as the quality of food, coarse and fine, changes in the type of vegetables and the amount of increase or decrease, the amount of protein, fat, starch, fiber and other content, water intake, can directly affect the fecal composition, causing anorectal disease. Long-term alcohol or spicy food, because wine and spicy substances can stimulate the mucosa of the digestive tract, resulting in vasodilation, colon dysfunction, the incidence of anorectal disease increased significantly. 4, occupational factors: long-term standing or sedentary. Because of the upright or sedentary posture, the anorectum resides in the lower part of the body, poor reflux of hemorrhoidal veins. 5, chronic diseases: such as long-term malnutrition, physical weakness, causing the anal sphincter relaxation and weakness. Long-term chronic bronchitis, emphysema, coughing and wheezing caused by the rise in abdominal pressure, pelvic stasis. Chronic hepatitis, hepatic steatosis, diarrhea, colitis, etc. are all triggers for the occurrence of anal diseases.