COVID-19 Patient Message


Anal Fissure





Fissures can recur easily, and it is quite common for a healed fissure to recur after a hard bowel movement. Even after the pain and bleeding has disappeared one should continue to aim for good bowel habits and adhere to a high fiber diet or fiber supplement regimen. If the problem returns without an obvious cause, further assessment may be needed.


A fissure that fails to respond to treatment should be re-examined. Persistent hard or loose bowel movements, scarring, or spasm of the internal anal sphincter muscle all contribute to delayed healing. Other medical problems such as inflammatory bowel disease, infections, or anal growths (skin tumors) can cause fissure-like symptoms, and patients suffering from ­persistent anal pain should be examined to exclude these conditions.


Surgery is a highly effective treatment for a fissure and recurrence rates after surgery are low. Surgery usually consists of a small operation to cut a portion of the internal anal sphincter muscle (a lateral internal sphincterotomy). This helps the fissure heal and decreases pain and spasm.
If a sentinel pile is present, it too may be removed to promote healing of the fissure. A sphincterotomy rarely interferes with one’s ability to control bowel movements and is most commonly performed as a short outpatient procedure. Surgical treatments do have other risks, and your surgeon will address these with you.


Complete healing occurs in a few weeks, although pain often disappears after a few days.


No! Persistent symptoms, however, need careful evaluation since conditions other than fissure can cause similar symptoms. Your doctor may request additional testing even if your fissure has successfully healed. A colonoscopy may be required to exclude other causes of bleeding.

© 2008 American Society of Colon & Rectal Surgeons