Plantar warts are growths on the soles of the feet. They are often mistaken for corns or calluses. The warts are different because a virus causes them.
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.
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Plantar warts are caused by the human papillomavirus (HPV). It can be contracted by walking barefoot on unsanitary surfaces. Touching and scratching can cause the virus to spread.
Last reviewedSeptember 2012by Purvee S. Shah, MD
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