Verruca is a type of WART caused by the human papillomavirus (HPV). It is a common skin condition that can appear on any part of the body, but is most commonly found on the hands and feet. Verrucas are usually small, round, and have a rough surface. They can be painful and can spread to other parts of the body if not treated. Treatment options include topical creams, freezing, and laser therapy.