It was a popular myth in the old days that you can get warts from toads. Not true – now we know that’s bogus. Warts are actually benign tumors of the epidermis caused by a virus. The virus responsible is the human papillomavirus, a double-stranded DNA-virus.
The virus resides in the bottom layer of the epidermis and replicates into almost normal-looking skin. Different sub-types of the human papillamavirus cause different types of warts. Some subtypes also cause cervical cancer and other more obscure types of wart-related cancers.
Another myth about warts is that they have roots but warts do not have “roots”. They only grow in the top layer of skin, the epidermis. When they grow down, they displace the second layer of skin, the dermis. The underside of a wart is actually smooth. Warts are caused by a virus that enters the body through a break in the skin. The virus grows in warm, moist environments, such as those created in a locker room or in your shoes when your feet perspire and the moisture is trapped.
Warts normally grow out of the skin in cylindrical columns and they do not fuse when the wart grows on thin skin such as the...