1概述扁平疣为HPV感染所致(HPV类型:3,10),HPV有很多亚型,其中HPV3、10易感染皮肤表皮层。好发于面部、手背及前臂等处,为米粒到绿豆大小扁平隆起的丘疹,表面光滑,质硬,浅褐色或正常皮色,圆形或类圆形,多数密集,可沿抓痕分布排列成条状,即Koebner现象。可数周或数月后突然消失,但亦可多年不愈。HPV可通过密切接触传播,接种部位的小创口可促进感染。 1 General Warts caused by HPV infection (HPV type: 3,10), HPV has many subtypes, including HPV3, 10 susceptible to the skin epidermis. Occur in the face, back of the hand and forearm, etc., for the rice to mung bean size flat bulge pimples, smooth surface, hard, light brown or normal skin color, round or almost circular, mostly dense, along the distribution of scratches Into a strip, that Koebner phenomenon. It can disappear for a few weeks or months, but it can be unhealed for many years. HPV can be transmitted by close contact and small wounds at the site of vaccination can promote infection.