what triggers warts to come
The viruses are more likely to cause warts when they come in contact with skin that is damaged or cut. Getting a small scrape or biting fingernails may bring on wart. Similarly, cuts and nicks from shaving can provide an avenue for infection.
When skin warts appear, it can seem as if the harmless growths came out of nowhere. But common warts are actually an infection in the top layer of skin, caused by viruses in the human papillomavirus, or HPV, family. When the virus invades this outer layer of skin, usually through a tiny scratch, it causes rapid growth of cells on the outer layer of skin â creating the wart.
Warts are caused by viruses, specifically HPV (human papillomavirus). The virus causes keratin, which is a hard protein on the top layer of the skin, to grow too fast. Warts are not the same as moles. Moles are typically dark while warts are often the same color as the person's skin. The appearance of a wart can vary depending where it is on the body and how thick the skin is. A wart that is located on the sole of the foot is known as a verruca. Contents of this article: Causes.