I. Diagnostic points (a) History of sexual contact, spousal infection or indirect contact. (2) Prevalent in the external genitalia and around the anus, and rarely in the oral cavity, axilla, breast, and between the toes. (3) Initially, it is a single or multiple scattered light red papules, soft, sharp tip, and then increase in size as papillae, cauliflower, cockle-shaped, warts are white, pink or dirty gray, the surface is prone to erosion, oozing, maceration and ulceration, may be combined with bleeding and infection. (e) Laboratory tests: positive white acetate test or typical histological manifestations. Second, the principle of treatment (a) external medicine 1, 0.5% foot leaf grass toxin tincture: 2 times a day, for 3 days stop 4 days for a course of treatment, can be used continuously 1 ~ 3 courses. Pregnant women are prohibited. 2.10-25% tincture of pedicel tincture: 1~2 times a week for external use, wash off after 1~4 hours of application. Pay attention to protect the normal tissues around the skin lesions. Forbidden for pregnant women. 3, 50% trichloroacetic acid or dichloroacetic acid solution: used once a week or every other week, no more than 6 weeks of continuous use. (B) physical therapy Laser, freezing, electrocautery can be used as appropriate. Surgical removal of huge warts.