Warts on the hands are usually common warts and are caused by HPV infection. The treatment can be cryotherapy. Liquid nitrogen cryotherapy is a spot contact treatment using liquid nitrogen at -196°C. After freezing, the warts will fall off naturally in about two weeks at the site of the spot freezing. If you do not fall off, you can also consider traditional carbon dioxide laser laser treatment, or topical 5-fluorouracil, imiquimod for treatment, especially stubborn common warts can be considered photodynamic treatment. Although warts are caused by HPV, attention also needs to be paid to repairing the skin barrier to reduce the situation where HPV enters the subcutaneous tissue from broken skin and forms colonization. In addition, once the viral warts are formed, they need to be treated thoroughly to reduce the recurrence as well as the transmission of their own inoculation. These are the methods of finger wart treatment as well as the causes of the disease.