This material must not be used for commercial purposes, or in any hospital or medical facility. Failure to comply may result in legal action. Medically reviewed by Drugs. Last updated on Feb 3, An anal fissure is a cut or tear in the tissue inside your anus.
Common causes of anal pain
Less common causes of anal pain
When a tubular organ or blood vessel becomes excessively narrow such that it can no longer perform as nature intended, it is a condition referred to by physicians as stenosis. Anal stenosis, also known as an anal stricture, is the narrowing of the anal canal, located just before the anal sphincter. The anal sphincter is a complex part of the body that maintains a seal that can be opened to discharge body waste. It is strong enough to restrict the passage of any fecal material but sensitive enough to differentiate between solid, liquid, and gas. There are actually two anal sphincter muscles … internal and external. The internal anal sphincter is a thin, white muscle wrapped around the anal canal. The internal sphincter contracts during rest and sleep, and keeps small amounts of liquid and gas from escaping unexpectedly. The internal anal sphincter is an involuntary smooth muscle, like the muscles of your intestines. You cannot mentally control it.
A patient presents with severe anal pain, lasting hours after each bowel movement. She notices some intermittent bleeding with defecation. She comes to the office with the presumed diagnosis of hemorrhoids. Are her symptoms consistent with hemorrhoidal disease, or does she have another disorder? Benign anorectal disorders are common and increasing in incidence. The decreasing intake in dietary fiber over the 20th century and into the 21st has contributed to a steady rise in preventable anorectal disorders. An anal fissure is a tear or a cut in the anoderm Figure 1. Constipation and passage of hard stools is often the cause of an anal fissure, although diarrhea can also contribute to its development. Most anal fissures are located in the midline and are posterior more frequently than anterior.
Back to Health A to Z. An anal fissure is a tear or open sore ulcer that develops in the lining of the large intestine, near the anus. Do not let embarrassment stop you seeking help. Anal fissures are a common problem GPs are used to dealing with. They can also tell you about self-help measures and treatments that can relieve your symptoms and reduce the risk of fissures coming back. A GP will ask you about your symptoms and the type of pain you have been experiencing. They may also ask about your toilet habits. A digital rectal examination , where a GP inserts a lubricated, gloved finger into your bottom to feel for abnormalities, is not usually used to diagnose anal fissures as it's likely to be painful. The GP may refer you for specialist assessment if they think something serious may be causing your fissure.