Warts are caused by the human papillomavirus. They can grow almost anywhere on the body, but most grow on the hands and feet. Because they are caused by a virus, they are easily spread from person to person or to other parts of the body. However, they are not always contagious. The virus sometimes spreads though contact on broken skin. It may take months for warts to appear after exposure to the virus and children and young adults are more susceptible.
Warts can come in a variety of different shapes and sizes. They are typically painless and may have blood vessels running through them that appear to be small black spots. Common warts, plantar warts, flat warts and genital warts are the different types of warts.
Warts are usually easily treated at home with over-the-counter medication. A stubborn or painful wart that fails to respond to home remedies should be looked at by a doctor. Women with genital warts should see a doctor every year for a pap smear because HPV is known to cause cervical cancer.Learn more about Skin Blemishes