After anal fistula surgery is side lying. After anal fistula surgery patients can choose side lying position or prone position lying, try to avoid lying down to prevent trauma pressure caused by pain, bleeding and other complications. Anal fistula surgery individual patients, side or prone position, more conducive to the wound pus, necrotic tissue and secretion drainage. Postoperative anal fistula patients should pay attention to keep the wound clean, you can use warm salt water or 1:5000 potassium permanganate solution sitz bath, you can also use traditional Chinese medicine for hot compresses, commonly used medicines are five times soup, bitter ginseng soup and so on. For early postoperative patients try to take fluid food, such as thin rice, soft noodles and so on. With the gradual recovery of the wound, you can eat a moderate amount of meat and high protein food, such as chicken, fish, milk and so on. This kind of food is more nutritious and can promote the growth of granulation tissue. Avoid spicy and stimulating food, avoid drinking alcohol. Keep the bowel movement, avoid dryness, affect the healing of the wound. After anal fistula surgery, it is recommended that patients listen to the requirements of the attending physician, actively cooperate with the treatment, to promote the healing of the wound.