After anal fistula surgery, usually about a month will not hurt, but each patient’s surgical incision is different, the specific recovery time will be affected by the size of the incision, whether the infection and other circumstances. 1. The size of the incision: as the surgery will form an incision, the anesthetic fades, the incision will appear tingling sensation, accompanied by seepage and oozing blood and so on. If the wound is not big, with the recovery of the wound, the pain will gradually reduce and disappear, usually in about 20 days the wound completely healed, about a month the pain disappears. If the incision is large, the recovery time will be longer. 2. Whether the infection: If in the recovery process, the patient’s physical quality is good, and rest local cleanliness and hygiene, care in place, generally about a month the pain disappears. If the incision site is contaminated by feces or urine, caused by infection, will stimulate the healing of local tissues, resulting in pain continued to extend. If the pain is not relieved one month after the anal fistula surgery, we need to consider the abnormal factors, should actively seek medical examination and treatment.