Not all hemorrhoids will be narrowed after surgery, only a small number of patients will be due to scar healing, or due to the removal of too much skin caused by the anal stenosis, serious cases may have an impact on defecation, need to be treated accordingly. For some of the hemorrhoid surgery patients, after the operation will appear anal narrowing situation, mainly because of the healing of the wound after the operation to form the scar is too large, the texture and elasticity are different from the normal skin, too much scar resulting in anal narrowing, or due to the operation of removing too much perianal skin and so on, resulting in anal stenosis. In general, mild anal narrowing can be improved by anal dilatation and other treatments, while severe anal stenosis requires appropriate surgical treatment. A small number of patients with anal stenosis after hemorrhoid surgery need to consult a doctor in time to clarify their condition and follow the doctor’s instructions for active treatment, and generally have a better prognosis. It is recommended that patients do a good job of postoperative care, regular review, conducive to the recovery of the condition.