Plantar warts, which are also known as verruca, are caused by HPV. More specifically, they are caused by the types 1, 2, 4 and 63 of that virus.

Plantar warts appear on the sole or the toes of the feet after the incubation period of the virus that can last between 1 and 20 months.

What does a plantar wart look like?

Plantar warts may differ in their appearance but in most cases they are firm lesions with tiny dark spots inside. In some cases, they can be rough and bumpy and they can also be thick. Their surface is smooth and has a grey yellow or brown color.

Most times they occur in areas of pressure or bony points such as the heels or the ball of the foot.

These symptoms of plantar warts are accompanied by a pain in the foot that makes it very difficult for the person to walk.

If you want to learn more about these symptoms, then here is a websites where you can view some pictures of plantar warts.