Anal fissures should of course be treated by proctology specialists, as anal fissures are a common condition in proctology. They are small ulcers that form in the skin of the anal canal below the dentate line after it has been injured. The primary symptom is anal pain, characterized by periodic, tearing-like pain. The second symptom is rectal bleeding during bowel movements caused by wounds on the fissure. The third symptom is that due to the pain, patients might avoid defecating, leading to habitual constipation. Therefore, proctologists have a comprehensive understanding and good knowledge reserve about anal fissures, so it is recommended that patients with this condition consult the proctology department.