Warts come from the HPV or human papillomavirus, appearing as lumps or growths on skin tissue. Often they will be a bit of a different color than the normal pigment of the skin. They are most definitely not limited to witches or hags from fairy tale stories, but are common, especially for children. In most cases, they do not cause pain (save some plantar warts, which grow on the soles of your feet). They are spread through direct contact, which indicates that regular interaction or contact with an individual who has warts can make you more likely to get them yourself.
The HPV Virus (Wart Virus)
A common virus, HPV affects many people who may not even know it because their skin does not form warts. The reason for this is that many people’s bodies are able to fight off the virus upon recognition before warts are formed. When the skin is scratched, cut, or wounded, HPV can get into the skin tissue and infect it to form warts. The skin cells then reproduce at accelerated rates to form growths at the infection site. Sometimes it takes a full year after exposure to HPV for warts to actually form.