Anal stenosis may cause an increase in the number of bowel movements. Anal stenosis is usually caused by organic lesions in the anus. After suffering from anal stenosis, the patient will have difficulty in defecation, pain in defecation, constipation and other symptoms; during defecation, the patient’s stool pattern will change, usually appearing in thin stripes or flat, mostly in a small section. As anal stenosis will lead to a significant decrease in the amount of stool each time, it will lead to an increase in the number of bowel movements or a prolonged bowel movement time. When suffering from anal stenosis should actively treat the primary disease, after curing the primary disease, anal stenosis can be treated through surgical way; it can be treated through skin flap transplantation, stenotomy, etc.; meanwhile, patients should not consume spicy and stimulating food, and more dietary fiber, such as vegetables and fruits. Patients should seek medical treatment when anal stenosis occurs to avoid aggravation of the situation.