Anal Itching can arise from 3 documented medical conditions. Understanding the clinical context helps identify urgent causes early.
Hemorrhoids
Hemorrhoids are swollen veins in the rectum or anus causing rectal bleeding, itching, and discomfort. They are classified as internal (above the dentate line) or external; most respond to dietary changes and topical treatments.
Anal Fissure
An anal fissure is a small tear in the lining of the anal canal causing sharp pain and bleeding during bowel movements. Chronic fissures may require topical nitroglycerin, calcium channel blockers, or surgical treatment.
Enterobiasis (Pinworm Infection)
Enterobiasis is the most common helminthic infection in temperate countries, caused by Enterobius vermicularis. It predominantly affects children and presents with intense nocturnal perianal itching. Treatment is with mebendazole or albendazole.
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