Koro, in its complete, classic form has been described as a culture bound syndrome. It usually occurs in otherwise healthy individuals in the context of acute, severe anxiety. The incomplete form of Koro is said to occur as part of a recognizable primary psychiatric disorder. A case report is presented for the first time of Koro in association with phobia for AIDS. A cognitive-behavioral approach was utilized in the management of the AIDS phobia and symptoms of Koro.