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HPV and Oropharyngeal Cancer

Anatomical diagram of the oropharynxDiagram of the oral cavity and oropharynx. The oral cavity includes the lips, the labial and buccal mucosa, the front two-thirds of the tongue, the retromolar pad, the floor of the mouth, the gingiva, and the hard palate. The oropharynx includes the palatine and lingual tonsils, the back one-third base of the tongue, the soft palate, and the posterior pharyngeal wall.

Human papillomavirus (HPV) can cause serious health problems, including warts and cancer.

What Is HPV?

HPV is the most common sexually transmitted infection in the United States. Of the more than 100 types of HPV, about 40 types can spread through direct sexual contact to genital areas, as well as the mouth and throat. Oral HPV is transmitted to the mouth by oral sex, or possibly in other ways. Many people are exposed to oral HPV in their life. About 10% of men and 3.6% of women have oral HPV, and oral HPV infection is more common with older age. Most people clear HPV within one to two years, but HPV infection persists in some people.

HPV can infect the mouth and throat and cause cancers of the oropharynx (back of the throat, including the base of the tongue and tonsils). This is called oropharyngeal cancer. HPV is thought to cause 70% of oropharyngeal cancers in the United States.

It usually takes years after being infected with HPV for cancer to develop. It is unclear if having HPV alone is enough to cause oropharyngeal cancers, or if other factors (such as smoking or chewing tobacco) interact with HPV to cause these cancers. HPV is not known to cause other head and neck cancers, including those in the mouth, larynx, lip, nose, or salivary glands.

What Are the Symptoms of Oropharyngeal Cancer?

Symptoms of oropharyngeal cancer may include a long-lasting sore throat, earaches, hoarseness, swollen lymph nodes, pain when swallowing, and unexplained weight loss. Some people have no symptoms. If you have any symptoms that worry you, be sure to see your doctor right away.

Can the HPV Vaccine Prevent Oropharyngeal Cancers?

The HPV vaccine was developed to prevent cervical and other cancers of the reproductive system. The vaccine protects against the types of HPV that can cause oropharyngeal cancers, so it may also prevent oropharyngeal cancers. But studies have not been done to show this.

CDC recommends that 11- to 12-year-old boys and girls get two doses of HPV vaccine. The second dose should be given 6 to 12 months after the first dose.

CDC also recommends that girls and women through age 26 years and boys and men through age 21 years get the vaccine if they were not vaccinated when they were younger. Men who are 22 through 26 years old also may be vaccinated. The number of recommended doses depends on the age at vaccination. If the series is started at age 15 or later, three doses are needed.

What Are Other Ways to Lower My Risk of Getting HPV or Oropharyngeal Cancer?

Condoms and Dental Dams

When used consistently and correctly, condoms and dental dams can lower the chance that HPV is passed from one person to another.

Alcohol and Tobacco

Alcohol and tobacco products may contribute to oropharyngeal cancers. Don’t smoke or use smokeless tobacco products, and avoid smoke from other people’s cigarettes. Limit the amount of alcohol you drink.

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