The phenomenon of fissure above the anus is mainly a symptom of anal fissure, anal fissure will not only form fissure on the skin around the anus, but also appear cracks and openings at the end of the rectum and anal canal, and cause pain and itching, and if the situation is serious, blood will also appear to ooze out from the fissure. The reason why the symptoms of anal fissure, mainly due to constipation, long-term bowel dryness and other reasons, these symptoms will cause greater trauma to the skin around the anus, and lead to bacterial infection. So the phenomenon of anal fissure should be timely treatment, you can use potassium permanganate lotion on the skin around the anus for cleaning, anti-inflammatory, and then in the affected area coated with some hemorrhoidal ointment, erythromycin ointment for treatment, in addition to some of the symptoms of hemorrhoids can also cause fissures in the skin around the anus.