The duration of anal fissure pain is related to the type of anal fissure. Generally, as long as fresh anal fissures are treated with good stool regulation, fumigating sitz baths and topical medications, patients will experience significant relief of pain symptoms and healing of the fissure in about 7-10 days. In the case of old anal fissures, especially those with anal stenosis, surgery is required and the pain is relieved in about 2 weeks after surgery. In contrast, patients with diabetes or postoperative infection have slower wound healing and variable pain recovery time. In addition, patients with anal fissures should also pay attention to soft, easily digestible food, increase the intake of coarse fiber food, stay away from the environment of tobacco and alcohol, drink more water, take appropriate physical exercise, and pay attention to perianal hygiene.