疣是一种病毒性新生物,常累及皮肤和粘膜,由人乳头瘤病毒引起。临床上常见的有寻常疣、跖疣、扁平疣及尖锐湿疣。疣主要为直接自身接触传染,皮肤损伤为病毒感染的重要因素,也可通过污染器物损伤皮肤而间接传染。潜伏期为数月至一年不等。疣的发病年龄高峰是20岁左右,少年占10%,尤其是扁平疣,多见于青少年,故有青年扁平疣之称。 Warts is a viral neoplasm, often involving the skin and mucous membranes, caused by the human papillomavirus. Clinically common in common warts, plantar warts, flat warts and genital warts. Warts are mainly direct contact with their own infection, skin damage as an important factor in viral infection, but also indirectly through the contaminated utensils damage the skin. The incubation period varies from several months to one year. The peak age of onset of warts is about 20 years old, juvenile accounted for 10%, especially flat warts, more common in adolescents, it is said young flat wart.