Anal fissure is one of the most common lesions to consider in the differential diagnosis of anal pain. This is an ulcer in the squamous epithelium of the anus located just distal to the mucocutaneous junction and usually in the posterior midline. It typically causes episodic pain that occurs during defecation and for one to two hours afterwards. Atypical fissures may be multiple or off the midline, or be large and irregular. These may be caused by inflammatory bowel disease, local or systemic malignancy, venereal infection, trauma, tuberculosis, or chemotherapy. The cause of the typical or benign fissure is not clear nor are there accepted methods for the prevention of fissures—both fertile areas for research. The most consistent finding in typical fissures is spasm of the internal anal sphincter, which is so severe that the pain caused by the fissure is thought to be due to ischaemia of the sphincter.
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Anal fissure — Comprehensive overview covers symptoms, causes, Chronic diarrhea; Inflammation of the anorectal area, caused by Crohn's. Anal fissure — Comprehensive overview covers symptoms, causes, Your doctor will insert a flexible tube into your rectum to inspect the.
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If possible, your doctor will perform a digital rectal exam, which involves inserting a gloved finger into your anal canal, or use a short, lighted tube anoscope to inspect your anal canal. However, if this is too painful for you, your doctor may be able to diagnose an anal fissure only by observation. An acute anal fissure looks like a fresh tear, somewhat like a paper cut. A chronic anal fissure likely has the tear, as well as two separate lumps or tags of skin, one internal sentinel pile and one external hypertrophied papilla.
An anal fissure is a small cut or tear in the lining of the anus. The crack in the skin causes severe pain and some bright red bleeding during and after bowel movements. At times, the fissure can be deep enough to expose the muscle tissue underneath.