Warts are small, usually painless growths on the skin caused by a virus. The typical wart is a raised round or oval growth on the skin with a rough surface. Common warts tend to cause no discomfort unless they are in areas of repeated friction or pressure. Warts often go away on their own within two years.
Update Date 11/20/2012
Updated by: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.