Anal fissure is a highly prevalent disease, the second most prevalent after hemorrhoids among anorectal diseases. It is a disease that occurs when the skin of the anal canal below the rectal dentate line ruptures or splits in its entirety in a radial longitudinal ulcer (also described as a pike or oval shape) with chronic infection and periodic pain! Many people are troubled by anal fissures, which cause painful bleeding and other symptoms and bring a variety of anal discomfort to patients, especially anal pain that makes patients restless. Anal fissures need early prevention and early treatment, the initial conservative treatment is the main focus, it is recommended that patients with recurrent perianal pain, bleeding and other symptoms promptly seek medical attention, a clear diagnosis, to avoid unnecessary damage caused by surgery, first summarize the common clinical causes of morbidity, as follows 2, constipation: both the cause and the result of stool tolerance. Patients deliberately reduce the number of bowel movements and delay defecation, making the stool more constipated and aggravating the damage to the anal canal, forming a vicious cycle. 3, pain: typical periodic pain is the main symptom of anal fissure, the first intention to feel slight discomfort and pain, feces through the anal canal during defecation, the anal canal expansion produces tear-like pain, slightly after a short interval of relief, about 5 minutes, again due to the expansion of muscle spasm and increased pain, lasting up to 1 hour long, or even up to several hours, the patient is restless very The pain is gradually relieved later. The pain will repeat when defecating again, making the patient fearful of defecation and hold back the stool. 4, itching: is the anal fissure ulcer surface secretions to skin stimulation caused by eczema. 5, childbirth caused by anal fissures: women often overexerted during childbirth, resulting in anal canal perineal area tears, causing pain and bleeding, resulting in anal fissures. At the same time, menstruation does not have a good rest and attention to menstrual hygiene, causing local inflammation of the anus, resulting in anal fissures. It may also be related to perineal congestion during menstruation.