Plantar warts are growths on the soles of the feet. They are often mistaken for corns or calluses . The warts are different because they are caused by a virus.
They grow in clusters and are usually flat. A plantar wart can often be distinguished by numerous black dots visible on their surfaces. Although plantar warts are generally harmless, their location beneath the feet can make them very tender. They also have a tendency to spread locally to other sites on the foot and elsewhere.