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HPV and Cancer - National Cancer Institute

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HPV infection can cause cervical cancer, anal cancer, oral cancer, oropharyngeal cancer, and other cancers. High-risk HPV 16 and HPV 18 cause most cancers. Get answers to questions such as: What is HPV? How is HPV transmitted? Does HPV infection cause symptoms? How does HPV cause cancer? Learn about treatment for cell changes caused by HPV.

HPV and Cancer What is HPV (human papillomavirus)? HPV is a group of more than 200 related viruses, some of which are spread through vaginal, anal, or oral sex. Sexually transmitted HPV types fall into two groups: low risk and high risk. High-risk HPVs can cause several types of cancer. There are 12 high-risk HPV types: HPV 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, and 59. Two of these, HPV 16 and HPV 18 , are responsible for most HPV-related cancers. Low-risk HPV types rarely cause cancer, although a few low-risk HPV types can cause warts on or around the genitals, anus, mouth, or throat. W

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