PPH is an anastomotic hemorrhoidal mucosal circumcision. If there is difficulty in defecation more than 30 days after the operation, anal stenosis is mostly considered and anal dilation is needed. For patients with hemorrhoids, after anastomotic hemorrhoidal mucosal circumcision, because of the postoperative wound scar repair, and then scar contraction, which led to anal stenosis, resulting in difficult defecation of the clinical manifestations. In this case, anal dilatation treatment is needed, which is usually carried out for about 1 month, each time for 5~10 minutes. In addition, these people should also pay attention to a light diet, avoid spicy diet, eat more vegetables and fruits rich in vitamins and dietary fiber, such as apples, bananas, celery, bok choy, etc., and drink more water, which is conducive to the softening of feces, and thus facilitates defecation. For people with the symptoms described, it is recommended to go to the hospital in time for early treatment.