Hemorrhoids are mainly caused by the doctrine of anal cushion displacement, varicose veins and so on. 1. Anal cushion downward theory: the anal canal has a ring-shaped vascular cushion on the inside of the anal canal, which is composed of rich venous vascular network, smooth muscle and connective tissue, with the role of closing the anal canal and controlling defecation, during defecation, the anal cushion is subjected to downward pressure, and then contracted back to the anal canal after defecation, when the elasticity of the cushion is weakened retraction, congestion and so on, hemorrhoids will form. 2. Varicose veins doctrine: the anal cushion is rich in veins, not only no internal venous flap, located in the lowest part of the abdominopelvic cavity, the surrounding tissues are loose, easy to congestion, bruising, and because of the veins than bear the pressure, with the development of time, the formation of varicose veins, triggered by the emergence of hemorrhoids. It is recommended that patients once found hemorrhoids timely to the hospital, in the doctor’s diagnosis, according to the patient’s specific condition, to take targeted treatment, follow the doctor’s instructions. Life should pay attention to perianal cleaning, avoid infection.