Warts are skin growths caused by viruses. Most warts are non-cancerous, but skin growths (warts) caused by the Human Papilloma Virus (HPV) are very much contagious and can spread person to person by physical contact. They may appear on a person’s private parts as well as any place on the body. Different warts respond to different treatments. There are numerous treatment options for warts including topical acid therapy, cryotherapy (liquid nitrogen freezing), cauterization (burning), curettage (scraping) and laser surgery.