Warts are common skin growths caused by a viral infection in the top layer of the skin. They are specifically caused by the human papillomavirus (HPV), which has over 100 different strains.

Warts are contagious, often harmless, and extremely common growths resulting from viral infections. Most people develop a wart during their lifetime. However, noncontagious warts can become ...

How Genital Warts Are Treated Genital Warts Genital warts ... of interferons and other immune system substances to reduce ...