Fifteen days after the anal fistula surgery, the wound did not grow well, consider itself a special part of the surgery is not easy to heal or there is an infection. 1. After anal fistula surgery, due to the special anal area, daily defecation and anal sphincter contraction, the general wound healing time is longer, wound healing is delayed, but after a period of time of active care can gradually heal. 2. after anal fistula surgery incision does not heal should also consider the presence of infection, may be caused by the change of medicine is not timely, the local redness, swelling and pus, pain and secretion increase, local drainage is not smooth, the wound granulation tissue is not new, not easy to heal. After anal fistula surgery, we should pay attention to timely dressing change, available 1:5000 potassium permanganate solution bath and clean the local, or local application of mupirocin ointment; to maintain bowel movement, regular outpatient review, patiently waiting for local healing.