A verruca is a type of wart found on the soles of the feet, and is normally called a plantar wart. Warts are caused by a virus, which infects the skin and causes a benign growth of dense material.
Most warts have a slightly raised area but as verrucas are found on the soles of feet they become flattened due to pressure. It is often possible to see tiny black dots in the center of verrucas, this is not the virus but clotted blood.
It is possible to buy over the counter products to treat verrucas, which slowly destroy the thickened skin. It can take several months to clear, and in the meantime others may appear.
In severe cases, they can be burnt off, by freezing with liquid nitrogen, and this can be a painful procedure. Warts can be highly contagious so if you are going barefoot in an area shared by many, other people you would be well advised to protect your soles by some form of foot wear.
It should go without saying that if you have plantar warts you should not go anywhere in a public place until you have been advised that the warts have completely disappeared.
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