Bleeding after drinking alcohol after internal hemorrhoid surgery can be based on the color of the bleeding to determine the cause, may be recurrence of hemorrhoids and gastrointestinal bleeding two cases. 1. recurrence of hemorrhoids: the main symptom of internal hemorrhoids is bleeding, and the color of the blood is bright red, usually drip bleeding or toilet paper with blood, bleeding can be jet-like, blood does not mix with the stool. Hemorrhoids are very prone to recurrence, so after the operation, we should also maintain a light diet, avoid spicy and stimulating food, avoid drinking alcohol, and regularly go to the anorectal department for rechecking. 2. Gastrointestinal bleeding: the color of gastrointestinal bleeding is dark red or black, often mixed with stool and then discharged, in addition to blood in the stool, there is also blood in the vomit or black stool. At this time, it is necessary to improve the colonoscopy, gastroscopy, coagulation six, blood routine and other tests to clarify the diagnosis. Treatment is based on acid suppression, hemostasis and nutritional support. After internal hemorrhoid surgery, bleeding phenomenon is found, attention should be paid to timely intervention, follow the doctor’s instructions to give treatment, in order to prevent the development of the disease.