Warts Up to 33% of children and young people have warts* Warts are small, grainy bumps — often rough to the touch — that are transmitted by a virus. While some go away on their own, others can be more persistent, creating discomfort, embarrassment or interference with normal activities. Indications Warts Product Solutions Contour TRL™ *Resource: National Center for Biotechnology Information, U.S. National Library of Medicine