Colonoscopy is not mandatory for patients with hemorrhoids before surgery. If for elderly patients in the high-risk group, there is significant stool irregularity or weight loss within a short period of time, fiberoptic colonoscopy should also be performed promptly because a small percentage of patients have hemorrhoids secondary to a tumor in the intestine that affects the perianal venous blood return, in which case the main treatment is for the intestinal tumor. In the case of simple hemorrhoids, anoscopy can be performed before surgery, which can also detect rectal and anal canal lesions. You should also continue anti-infection treatment after the surgery and pay attention to the hygiene around the anus, as well as proper sports and exercise in general. If there are obvious changes in bowel habits and abnormal regularity, regular fiberoptic enteroscopy should be performed, and further surgery is needed if necessary.