扁平疣是一种常见的、影响面部美容的皮肤病,好发于青少年,因此又称青年扁平疣。扁平疣表现为面部皮肤上出现米粒至黄豆大的隆起性丘疹,表面扁平,光滑,质地稍硬,界线清楚。数目多者常密集成片,亦可数个融合。大多数扁平疣为圆形,颜色浅褐或如同正常肤色,一般无自觉症状,或仅偶有微痒。扁平疣是一种乳头瘤病毒感染所致,通过直接接触传染。皮肤外伤,有时甚至很不经意的搔抓、擦伤均是引起感染的重要因素,而机体免 Flat warts is a common skin disease affecting facial beauty, occurs in adolescents, and therefore also known as young flat warts. Flat warts appear to appear on the facial skin to soybean large bulge papules, the surface flat, smooth, slightly hard texture, clear line. A large number of often dense pieces, but also a few fusion. Most flat warts are round, light brown or as normal skin tone, usually without symptoms, or only occasionally itchy. Flat warts are caused by a papillomavirus infection and transmitted by direct contact. Skin trauma, sometimes even casual scratches, abrasions are an important factor in causing infection, and the body free