Warts are caused by the human papillomavirus (HPV). They were originally thought to be chronic benign diseases, but it has since been discovered that some HPV infections lead to malignant tumors. Warts are transmitted by direct contact (e.g., warts are transmitted by sexual contact again) or indirect contact (shoes, brushes, etc.). Warts are often clinically classified as: flat warts, common warts, plantar warts, condyloma acuminata and warty epidermal dysplasia. The clinical diagnosis is easy, but there are still easy to misdiagnose, such as flat warts and seborrheic keratosis, plantar warts and corns, calluses, condyloma acuminata and pseudomonal warts, etc. Differentiation. The main treatment: drugs: 1, anti-viral: interferon, anti-viral Chinese medicine is the main; 2, improve the immune function: thymidine, transfer factor, pidomod, etc.; 3, retinoic acid: Avia, vitamin A, etc.; 4, topical anti-viral drugs, such as interferon gel, aciclovir cream, imiquimod, adapalene gel, retinoic acid cream, etc. Other treatments: cryotherapy, thermotherapy, laser (CO2L/PDL), photodynamic therapy, immune vaccine therapy, etc. Patients who are found to have warts should go to the hospital for confirmed treatment and medication combined with physical therapy or biological therapy to be effective.