扁平疣是一种由人类乳头瘤病毒引起的,以色素沉着、细胞增生反应为主,表现为皮肤赘生物的疾病。多见于青年人,以女性发病较多,少年儿童亦可发病。扁平疣大多骤然出现,迅速增多。初起如针尖、芝麻样丘疹,逐渐增大如米粒状或绿豆状扁平丘疹。扁平疣表面光滑,圆形或略带不规则形,质硬,外观为正常肤色或浅褐色,数目较多,散状分布于皮损处,偶尔因搔抓呈条索状排列。扁平疣的好发部位为面部、手背及前臂等处,有时伴发寻 Flat warts is caused by a human papillomavirus, pigmentation, hyperplasia reaction, manifested as skin neoplasm disease. More common in young people, the incidence of more women, young children can also be disease. Most flat warts appear suddenly and rapidly. Beginning as a needle tip, sesame-like papules, gradually increased, such as rice or mung bean-shaped flat papules. Flat warts, smooth, round or slightly irregular shape, hard, the appearance of normal skin tone or light brown, a large number of scattered in the lesion at the Department, and occasionally due to scratching were arranged in a cord-like. Flat warts are the predilection sites for the face, back of the hand and forearm, etc., sometimes with the search