gastrointestinal disorders
Pruritus Ani (Anal Itching)
Key Points
Although most cases are idiopathic, rule out infectious, neoplastic, and other treatable causes. Pinworms in children and hygiene-related issues in adults are common causes. Foods and detergents or soaps can cause anal itching. Practicing appropriate, nonirritating hygiene (ie, not too little but not too vigorous, avoiding strong soaps and chemicals) and decreasing local moisture can help alleviate symptoms. 