Scarring anal fissure can usually be cured, and patients can undergo surgical treatment under the guidance of a doctor. Anal fissure is usually caused by dry stool, local inflammation, trauma and other factors, resulting in tearing and damage to the mucous membrane of the anal canal. Some patients with anal fissure have repeated episodes of the disease, which may lead to the formation of keloid scars in the local wound of anal fissure, resulting in pain symptoms, and fecal matter tearing the wound when defecating, and also the symptoms of pain and blood in the stool. Scarring anal fissure is caused by an unhealthy healing condition. Scarring anal fissures can be removed intact with doctor-guided excision surgeries such as anal fissure resection and partial sphincter dissections. Patients can use antibiotic drugs for treatment under the guidance of doctors after surgery, such as cefadroxil, cefixime, amoxicillin and other drugs; keep the wound clean and hygienic, and carry out dressing change in time to ensure that the wound recovers layer by layer from the inside to the outside, which can lead to the cure of scarring anal fissure. Patients are advised to go to the hospital for examination and treatment in time; please do not use medication by yourself to avoid danger and delay.