The red color of the wound after anal fistula surgery is usually normal, but there may be infection. After anal fistula surgery, the wound is not completely healed, so the red color of the wound after anal fistula surgery is usually a normal phenomenon, generally do not need to do other treatments, it is recommended that the patient to keep the anus clean and clean hygiene, the wound surface is dry, drainage, after defecation should be cleaned with water, lukewarm water sitz bath, to avoid infection of the wound. If the wound is red and accompanied by swelling and pain, body fever and other symptoms of discomfort, we should consider whether there is infection, inflammation, because the anal fistula surgery location is special, easy to feces and intestinal fluids and other pollutants of infectious stimuli, the wound is infected by bacteria, it is recommended that the patient can be used in the doctor’s guidance of topical mupirocin ointment, erythromycin ointment, and other drugs to fight infection treatment, or oral cephalosporin, azithromycin, and so on. . It is recommended that patients do not eat greasy, spicy and stimulating food during the recovery process, keep the bowel movement smooth, do a good job of postoperative care, change the medicine, if there is any discomfort, immediately go to the hospital, give timely treatment to avoid affecting the normal recovery after surgery.