After mixed hemorrhoid surgery, anal stenosis usually requires dilation exercises or a scar release procedure. The exact time is uncertain depending on the condition. Anal stenosis is a more common complication after anus-plasty, patients found that anal stenosis, can be local use of Keselen, daily attention to regulate the diet, keep the stool, develop the habit of regular defecation, to avoid constipation, at the same time in the guidance of a professional doctor, with the expansion of the anus for treatment, the specific healing time according to the degree of different conditions, the time is not certain. Severe stenosis by anal dilatation does not improve the person, should be considered again surgery, commonly used surgical methods for scar laxation (including flap transplantation, sphincterotomy, posterior anal canal linear incision, etc.), follow the doctor’s instructions to choose, and actively cooperate with the treatment. In order to prevent stenosis, the doctor should fully free the rectum when performing mixed hemorrhoid surgery to avoid tension during suturing; preventing incision infection and rectal retraction after surgery, and adhering to anal dilatation for 1 to 1.5 years are effective measures to prevent and treat anal stenosis. Outpatient regular review, follow the doctor’s instructions.