After hemorrhoid surgery resulting in anal fissure can be improved by general treatment or surgical treatment to improve the symptoms and relieve pain, the treatment needs to be carried out under the guidance of the doctor. 1. General treatment: general treatment is applicable to patients with poorly healed surgical wounds or good wound conditions. It is recommended to adjust dietary habits in life, light diet, quit smoking and drinking, less oil and salt, avoid spicy and stimulating food, drink more water, eat more food rich in dietary fiber, and keep the bowel movement smooth. At the same time, you can also use 1:5000 potassium permanganate solution sitz bath, keep the wound clean and hygienic, disinfection and anti-inflammatory, and promote the healing of the ulcerated surface of anal fissure. 2. Surgical treatment; surgical treatment is applicable to the general treatment is ineffective and wound infection, healing difficulties, etc., the need for surgical treatment, that is, anal fissure excision, the wound site for debridement, removal of ulcers, necrotic tissues, if necessary, take antibiotics such as penicillin, azithromycin, etc., to control inflammation, and to promote the recovery of the wound. Hemorrhoidal surgery resulting in anal fissure, good postoperative care, cleaning and dressing change, need to follow the doctor’s instructions to perform, to avoid complications such as trauma infection, regular review, if any abnormalities in a timely manner.