Warts are small, usually painless growths on the skin caused by a virus called human papillomavirus (HPV). They are generally harmless. However, warts can be disfiguring and embarrassing, and occasionally they itch or hurt (particularly on the feet).
The different types of warts include:
About once or twice a month, I see a young male in his late teens or early 20s who come to me to evaluate a bump or lesion on his penis.... Read more »