An anal fissure fissure-in-ano is a small, oval shaped tear in skin that lines the opening of the anus. Fissures typically cause severe pain and bleeding with bowel movements. Fissures are quite common in the general population, but are often confused with other causes of pain and bleeding, such as hemorrhoids. Anal fissures can occur at any age and have equal gender distribution. A small number of patients may actually have fissures in both the front and the back locations. Fissures located elsewhere off to the side should raise suspicion for other diseases see below and will need to be examined further.
Anal fissures – Knowledge for medical students and physicians
An anal fissure is a common and often painful problem caused by a small tear or ulcer open sore in the lining of the anus back passage. This can cause bleeding, local itching and pain with a bowel movement, which can be severe. When someone has an anal fissure the first treatments can include a high-fibre diet, laxatives and applying anaesthetic ointments to the affected area. Anal fissures usually heal within a few weeks but those that have not healed after 4—6 weeks are called chronic fissures.
See the latest Coronavirus Information including testing sites, visitation restrictions, appointments and scheduling, and more. An anal fissure is a small split or tear in the thin moist tissue mucosa lining the lower rectum anus. In adults, fissures may be caused by passing large, hard stools, or having diarrhea for a long time.
An anal fissure is a longitudinal tear of the perianal skin distal to the dentate line , often due to increased anal sphincter tone. Anal fissures are classified according to etiology e. They are typically very painful and may present with bright red blood per rectum hematochezia.