However, it should be differentiated to a plantar wart which is a wart caused by the human papillomavirus (HPV) occurring on
the sole or
toes of the foot. Plantar warts are harmless and self-limiting, but should be treated to lessen symptoms, decrease duration, and reduce transmission.
It would also be important to know the ABCDE of melanoma on the skin. A for asymmetry, B for border, C for color, D for diameter and E for elevation.