A wart is a benign skin growth caused by a virus. They may occur anywhere on the body but are frequently seen on the hands, feet, and face (areas of frequent contact). Over-the-counter medications are often effective in removal of warts.
Review Date 11/10/2020
Updated by: Ramin Fathi, MD, FAAD, Director, Phoenix Surgical Dermatology Group, Phoenix, AZ. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.