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HPV Virus Types

HPV, or the human papilloma virus, is the name of a group of viruses that affect the mucous membranes and skin. There are more than 100 HPV virus types, and over 30 types are transmitted sexually. Some HPV infections are very dangerous, while other types are considered benign.

  1. Cervical Cancer

    • According to the Mayo Clinic, HPV infections 16 and 18 account for approximately 70 percent of all cervical cancer cases. Persistent HPV infections lasting longer than 2 years offer a greater cancer risk.

    Genital Warts

    • Genital warts, caused primarily by HPV infections 6 and 11, are nonmalignant growths that occur in the genital and anal areas. Genital warts typically look like a tiny cauliflower, a small stem-like protrusion or a flat lesion.

    Plantar Warts

    • Plantar warts are hard, nonmalignant growths that typically appear on the ball of the foot or on the heel. HPV infections types 1, 2 and 4 cause most plantar warts.

    Upper Respiratory and Oral Lesions

    • HPV types 6, 11, 16 and 18 frequently cause lesions or warts to form on the tonsils, larynx, nose or tongue.

    Common Warts

    • Common warts consist of nonmalignant skin growths that typically form on the fingers, around the nails or on the hands. Most common warts are caused by HPV infections 1, 2 and 4, and usually affect those older than 20.

    Flat Warts

    • HPV infections 3, 10, 27 and 28 can cause slightly raised, nonmalignant lesions to form on the hands, face, wrists, neck or knees. These HPV types typically affect young adults, teens and children.

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