Anal fissure is called anal fissure, when anal fissure occurs, it will cause severe pain around the anus, this pain is cut-like or tear-like, accompanied by blood in the stool and the symptoms of constipation. Most anal fissures are caused by constipation, so the first step in treating anal fissures is to soften the stool, which can be done through oral laxatives such as Ma Ren Pills, Sophora Jiao Pills or Lactulose Oral Liquid. After the stool with warm water or potassium permanganate anal bath, relieve the spasm of the anal sphincter, reduce pain. If the pain is severe and unbearable, you can incorporate diclofenac sodium suppositories into the anus to relieve pain. Apply hemorrhoidal ointment to the anal fissure area, such as anus tylenol ointment or Ma Yinglong hemorrhoidal ointment, etc., which can play a role in promoting the healing of the fissure. In addition, the diet should be as light as possible, avoiding spicy and stimulating foods as well as fried foods. Generally, through the above conservative treatment, most of the symptoms of anal fissure can be improved in about 5-7 days, and the fissure can be healed slowly.