The anal fistula surgery is very frightening to everyone, but the truth is that it is not as serious as we think. 1, because the anal fistula surgery is given anesthesia during the operation, there will be no pain, the postoperative anal canal pressure becomes smaller, there may be some pain within 24 hours, you can use intravenous analgesic drugs, such as intravenous analgesic pump, to reduce pain; 2, there may be some pain when defecating and changing medicine after the operation. Life should pay attention to eat less spicy and stimulating diet, sitz bath every day after surgery, keep the wound clean, reduce local inflammatory stimulation and stool pollution causing inflammatory damage and pain. If the pain is obvious, you can use local morphine suppositories, diclofenac sodium suppositories, but also intramuscular injection of pethidine hydrochloride, tramadol to reduce pain; 3, must eliminate their own tension and anxiety, and so the inflammatory exudation period, the secretion is reduced, the pain will be clear relief. If the anal fistula is not usually infected, it is a chronic inflammation and will not be painful, only after surgery will have some pain. The above methods can effectively relieve the pain.