Anal Fissure

A tear in the lining of the anal canal, usually produced by straining to pass a hard constipated stool can produce the extremely painful condition of acute anal fissure. While many anal fissures gradually settle, persisting symptoms for more than six weeks resulting in chronic pain can be evaluated and treated in the out-patient setting. Pharmacological agents can be applied to the skin at the anal orifice or injected into the internal sphincter to induce relaxation of sphincter spasm and healing. For a minority of resistant fissures accurate division of a portion of the internal anal sphincter (internal sphincterotomy) can achieve speedy resolution of severe symptoms.