Warts are a very common skin condition. They frequently appear as single lesions or in small groups. This is a photograph of an unusually severe and extensive case of warts. (Image courtesy of the Centers for Disease Control and Prevention.)
Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.