Warts
Why it happens: Warts are caused by infections with certain types of the human papillomavirus. The types of HPV that cause warts are not the types that can cause cancer.
Symptoms and treatments: The appearance of warts can differ depending on where they show up, but they’re typically small, rough-feeling growths on the skin. They most often appear on our hands, but some HPV types can cause warts on our genitals, face, or feet. While the warts themselves are usually harmless, they are contagious and can sometimes be painful. They often go away on their own, but over-the-counter treatments like topical salicylic acid can speed up the process. Recurring or long-lasting warts can be surgically removed or cauterized. Warts are benign, but similar-looking growths that grow in size or shape may be a sign of cancer.
