Warts are benign growths caused by human papillomavirus (HPV) infection of the skin mucosa. Common clinical conditions include common warts, flat warts, plantar warts and condyloma acuminata. Warty epidermal dysplasia is also thought to be closely related to HPV infection. The common clinical types and manifestations are 1, common warts: commonly known as “wart”, “wart”, occurring between the ages of 5 to 20 years. The typical lesion is a grayish-brown, brown or skin-colored papule of soybean size or larger, with a rough surface and a hard texture, which can be papillomatous. 2, plantar warts: for the occurrence of common warts on the bottom of the foot. It can occur in any part of the foot, but to the pressure points of the foot, especially the central region of the metatarsal bone for more. The actual fact is that you can find a lot of people who are not able to get a good deal on this. The first thing you need to do is to get a good idea of what you’re getting into. 3, flat warts: the prevalence of children and adolescents. It is a good idea to take a look at the face and forearms. The typical lesion is a flat elevated papule of rice grain to soybean size, round or oval, smooth surface, hard, normal skin color or light brown, more sudden appearance, the number of more and dense. The lesions may be arranged in a beaded pattern after scratching. The process is chronic, in all clinical types of HPV infection in the highest rate of self-resolution, a few patients can recur. 4, genital warts: also known as condyloma acuminatum, is likely to be sexually active in young and middle-aged. The incubation period is three months. The external genitalia and around the anus skin mucous membrane moist area for the site, men are seen in the glans, coronal groove, foreskin ties, urethra, penis, etc.. In women, it is more common in the labia majora and minora, vaginal opening, clitoris, vagina, etc. The first is a single or multiple scattered reddish papules with soft texture and sharp tips, which gradually increase in size. The warts are often white, pink, or gray, and the surface is prone to erosion, oozing, maceration, and rupture, as well as bleeding and infection. The majority of patients have no obvious conscious symptoms, a few may have foreign body sensation, burning pain, itching or discomfort during sexual intercourse. The general treatment is topical medication and physical therapy, and systemic medication can be used for a larger number of skin lesions or for a long time.