Zoon's balanitis (ZB), or balanitis circumscripta plasmacellularis, is a nonvenereal disease, characterized by a chronic, idiopathic, and benign inflammation of genital mucosa. It affects glans of men aged 20-90 years and often uncircumcised. The diagnostic criteria are:(a) presence of shiny, erythematous plaques on glans, prepuce or both, for more than 3 months; (b) poor response to topical therapies (minimum 4 weeks); and (c) absence of concurrent infections. 1 The man-