Medicine an Surgery notes

Apr 24th, 2015
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ANAL FISSURESDefinition-Superficial linear tear in the squamous epith. of the anal canal distal to the dentate line. -Most commonly caused by passage of a large, hard stool.- In the short-term, usually involves only the epithelium and, in the long-term, involves the full thickness of the anal mucosa.Occurrence-Anal fissures are common in infancy, and they represent the most common cause of bright rectal bleeding at any age. -If not promptly diagnosed and treated, these small tears and their occasionally associated superficial infection cause severe anorectal pain during bowel movements and set in motion a cycle of stool negativism, constipation, and increasing pain with subsequent defecation.Etiology-Not exactly known But:1.Trauma -passage of hard stool(constipation) -anal intercourse - rectal examination speculum2. Low-fiber diets- lacking in

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