Warts and verrucas are growths caused by the same virus on different parts of the skin. Warts can appear anywhere on the body, although they are most common on the hands. Verrucas are warts that form on the soles of the feet. Since verrucas are squashed under the foot, they can look a bit different from other warts. Verrucas are usually flattened and often have dark specks as a result of tiny blood vessels being crushed inside them. The same kinds of treatments can be used on warts and verrucas.