Warts are a skin disease caused by human papillomavirus (HPV) infection. There are more than twenty known subtypes of HPV, and humans are the only hosts of HPV, which is transmitted mainly by contact, with trauma often being an important factor. Different types of HPV can cause different clinical diseases. The most common clinical conditions are common warts, plantar warts, flat warts, warts epidermis, etc. The actual hand is a common trigger for hand trauma or water immersion. The typical skin lesion is a grayish-brown, brown or skin-colored papule with a rough surface and a hard texture, which can be papillomatous. The actual fact is that you can find a lot of people who are not able to get a good deal on this. The typical lesion is a flat elevated papule, round or oval, with a smooth surface and a hard texture, normal skin tone or light brown, more sudden appearance, more number and intensive. The lesions may be arranged in a bead-like pattern after scratching. The course of the disease is chronic, some patients can naturally fade, a few patients can recur. The general treatment is topical medication and physical therapy, and systemic medication can be used for a large number of skin lesions or for a long time.