About Wart Removal
Warts occur when skin cells grow faster than normal because they are infected with the human papillomavirus (HPV). Among the 150 strains of HPV, about 10 cause cutaneous (skin) warts, including common, plantar, and flat warts (see “Common types of skin warts,” below). Certain other strains cause anal warts and genital warts. Some sexually transmitted types of HPV are implicated in cervical and other genital cancers, but the strains that cause skin warts have rarely been linked to cancer.
Skin warts aren’t highly contagious. They can spread from person to person by direct contact, mainly through breaks in the skin.
A wart virus infection is different from a bacterial infection such as strep throat, which can be caught, treated, and eradicated because it progresses in a distinct, reliable pattern.