title: Anorectal disorders. Five common causes of pain, itching, and bleeding.
abstract: Hemorrhoids are a common source of anorectal symptoms, which are determined by their size. A helpful measure in small hemorrhoids is a high-fiber diet; in moderate lesions, ligature therapy is effective. Surgery should be reserved for large hemorrhoids. Anal fissures, probably caused by trauma to the anal canal during defecation, may persist because of a cycle of hard stools, pain, and reflex spasm. A high-fiber diet and sitz baths relieve acute fissures. Lateral partial internal sphincterotomy is usually effective when they become chronic. Perianal abscess is often caused by acute infection of the anal glands; fistula is the result of chronic infection. Swelling and induration may be present. Pain is throbbing and continuous, and perianal examination may require use of an anesthetic. Incision and drainage with follow-up to ensure resolution of infection is required. Pruritus ani may result from several contributing conditions or may be idiopathic. Restoration of dry, intact perianal skin is the treatment goal. Patients should be taught gentle hygiene and drying methods and advised to avoid caffeine or other dietary items that seem to exacerbate symptoms. Condylomata acuminata cause bleeding and pain if allowed to progress. Biopsy should be considered in patients at risk of dysplasia. Repeated application of caustic topical agents may help small lesions. Large, extensive, and persistent lesions require surgical ablation.
mesh_terms: D000038:Abscess / Q000175:diagnosis / Q000628:therapy; D001004:Anus Diseases / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D003218:Condylomata Acuminata / Q000175:diagnosis / Q000628:therapy; D006484:Hemorrhoids / Q000175:diagnosis / Q000628:therapy; D006801:Humans