Abstract: Introduction: Nail psoriasis is one of the clinical manifestations of psoriasis that found in the nail, usually affecting the nail plate, nail bed, hyponychium, and nail matrix. Histopathology examination is the gold standard for diagnosis of nail psoriasis. Recently, dermoscopy is reported to have good diagnostic value in dermatology, because it can assess the nail bed and nail plate. Dermoscopy can be done quickly and it is