Hemorrhoid surgery is relatively small compared to surgery on other parts of the body, such as laparotomy, where the surgical incision and trauma are relatively small, but it should not be considered a minor surgery and disregarded. The function of the anal area is important, the structure is fine, and the nerves are abundant, so the surgery should pay more attention to function and trauma recovery, and to reduce post-operative pain, and the surgery is risky regardless of its size. The possible complications after hemorrhoid surgery are: 1. Recurrence of hemorrhoids, causes of recurrence include compensatory regeneration of tissue after surgery, incomplete peeling and removal of hemorrhoid tissue, poor post-operative habits of life and diet, prolonged squatting, sedentary, diarrhea, constipation, alcohol consumption, love of spicy and irritating food, etc. 2. Post-operative pain and discomfort in the anal area, because the anal area is rich in nerves and sensitive, post-operative scar tissue is not the same as normal tissue and may have 3, post-operative anal stenosis, when hemorrhoids are more serious, extensive removal of skin and mucosa, the anus may appear a certain degree of narrowing. The patient’s fear of defecation and artificial control of diet after surgery leads to reduced defecation, and the anus does not get normal expansion of formed stool for a long time, which can also lead to the healing of perianal wound adhesions and the formation of scarring, resulting in anal stenosis.