Surgeries for the treatment of internal hemorrhoids include hemorrhoidectomy, anastomotic suprahemorrhoidal mucosal circumferential resection, etc. The choice of surgery will depend on the severity of the internal hemorrhoids. Internal hemorrhoids can be divided into 4 degrees. Degree I: Bleeding only during defecation, hemorrhoids will not prolapse out of the anus. Degree II: hemorrhoids prolapse from the anus during defecation, and can be returned to the anus on their own. III degree: hemorrhoids out of the anus, need to use the hand to assist the return. IV degree: hemorrhoids prolonged out of the anus, can not be restored or restored immediately after prolapse. II, III, IV degrees of internal hemorrhoids can choose hemorrhoidectomy; anastomosis hemorrhoidal mucosal circumferential resection for III, IV degrees of internal hemorrhoids and conservative treatment is ineffective for II degrees of internal hemorrhoids. The cause of internal hemorrhoids is not yet completely clear, long-term sitting and standing, constipation, drinking alcohol, eating a lot of stimulating food, poor dietary habits are the cause of internal hemorrhoids. After internal hemorrhoid surgery, it is recommended that patients do a good job of postoperative care and dressing change to avoid infection, bleeding and other complications. Drink more water on weekdays, appropriate activities, keep the bowel movement, regular review.