A back wart, also known as common warts, can be eliminated by laser, liquid nitrogen or surgery. 1. laser: laser using photothermal effect, through the production of special light waves emitting thermal energy, the warts warts will gradually gasification, so as to get rid of warts. 2. Liquid Nitrogen Freezing: Liquid Nitrogen Freezing is a method of removing warts by using low temperature to kill wart cells and necrotic warts, to get rid of the purpose. 3. Surgery: Surgery can be used to remove warts when they are large. The surgery is more thorough and less prone to recurrence, but there is a greater risk of scarring. The wart on the back is recommended to go to the regular hospital in time, with the help of the doctor to choose the appropriate treatment method, and targeted treatment or treatment.