HPV vaccination provides strong protection against new HPV infections. Vaccination is prevention and does not cure an infection once you have it. The HPV vaccine is not used to treat HPV infections or diseases caused by HPV. HPV vaccination offers the most protection when given at ages 9-12. HPV vaccination is estimated to prevent up to 90% of HPV-related cancers.
The HPV vaccine series is recommended for girls and boys, at the age of 11 or 12, and the series can be started at age 9. It is important for males as well as females to get vaccinated, because both men and women can develop cancers of the mouth and throat, anal cancers, and genital warts. Women are also at risk for cervical cancer, and men for penile cancer. Vaccination can also reduce the spread of HPV that causes cancer to other people.
Children who start the vaccine series before age 15 need two doses to be protected. For young people who weren’t vaccinated within the age recommendations, HPV vaccination is recommended up to age 26. Those who receive their first dose at age 15 or older need three doses to be protected.
Yes, the vaccine can be given to adults between the ages of 27 and 45 who didn’t receive all vaccine doses earlier. Adults in this age group benefit less from the vaccine because they are more likely to have been exposed to HPV already. Therefore vaccination is not routinely recommended for people in this age group. If you are concerned that you are at risk for a new HPV infection, talk with your health care provider about whether HPV vaccination may be right for you.
Screening tests are used to check for disease when there are no symptoms. The goal of screening for cervical cancer is to find precancerous cell changes at an early stage, before they become cancer and when treatment can prevent cancer from developing.
Currently, cervical cancer is the only HPV-caused cancer for which FDA-approved screening tests are available. Screening for cervical cancer is an important part of routine health care for people who have a cervix. This includes women and transgender men who still have a cervix. Cervical cancer screening tests include the HPV test that checks cervical cells for high-risk HPV, the Pap test that checks for cervical cell changes that can be caused by high-risk HPV, and the HPV/Pap cotest that checks for both high-risk HPV and cervical cell changes.
Learn more about Cervical Cancer Screening—including HPV and Pap testing—and find out about next steps after an abnormal Pap test or positive HPV test.
Sometimes an HPV infection can become active again after many years. Learn more about what it means if a woman has a positive HPV test after many years of negative tests.
There are no Food and Drug Administration (FDA) approved tests to detect HPV infections or HPV-caused cell changes in anal, vulvar, vaginal, penile, or oropharyngeal tissues. Research studies are ongoing to identify tests that can detect precancers in these areas or find cancer in an earlier, more treatable stage.
Can Vaginal Cancer Be HereditaryAnal cancer screening: Among populations that are at higher risk for anal HPV infection, such as men who have sex with men or people who are HIV positive, research has found that an anal Pap test (also called an anal Pap smear) may help to detect early cell changes or precancerous cells. A clinical trial found that treating precancerous anal lesions (called HSIL) in people living with HIV cut their risk of developing anal cancer by more than half.
Oral cancer screening: Currently, there are no standard screening tests for oral cancer. The United States Preventive Services Task Force (USPSTF)Exit Disclaimer has found that the current evidence is insufficient to assess the balance of benefits and harms of screening for oral cancer in asymptomatic adults. However, dentists usually check for signs of oral and oropharyngeal cancer as part of a routine dental check-up.
Learn more about Oral Cavity, Pharyngeal, and Laryngeal Cancer Screening (PDQ®) and about symptoms in Oropharyngeal Cancer Treatment (Adult) (PDQ®). Treatment for Cell Changes Caused by HPV Infection Although HPV infection itself cannot be treated, there are treatments for the precancerous cell changes caused by infection with high-risk HPV. Precancerous cervical cell changes: Most women who have precancerous cervical cell changes are treated with the loop electrosurgical excision procedure (LEEP), which is a method to remove the abnormal tissue. Learn more about treatments for abnormal cervical cell changes.
Precancerous vaginal, vulvar, penile, and anal lesions and genital warts: Treatment methods include topical medicines, surgical excision, cryosurgery, and laser therapy.
HPV-related cancers: Individuals who develop an HPV-related cancer generally receive the same treatment as patients with tumors at the same site that are not related to HPV infection. However, patients with HPV-positive oropharyngeal cancer may receive different treatments than patients whose oropharyngeal cancers are not caused by HPV.
Learn more about treatment options for oropharyngeal cancer, including targeted therapy and new types of treatment such as immunotherapy being tested in clinical trials.
Once high-risk HPV infects cells, it interferes with the ways in which these cells communicate with one another, causing infected cells to multiply in an uncontrolled manner. These infected cells are usually recognized and controlled by the immune system. However, sometimes the infected cells remain and continue to grow, eventually forming an area of precancerous cells that, if not treated, can become cancer. Research has found that it can take 10 to 20 years, or even longer, for HPV-infected cervical cells to develop into a cancerous tumor.
Among women whose cervical cells are infected with high-risk HPV, several factors increase the chance that the infection will be long lasting and lead to precancerous cervical cells. These include:
Having a very aggressive HPV type, particularly HPV 16 or HPV 18. If you have either of these HPV types, make sure you receive diagnostic testing with a colposcopy.
Having a weakened immune system. If you have HIV or are taking medicines that suppress your immune system, talk to your health care provider about diagnostic testing and follow-up.
Clinical trials are an important step in learning about better ways to prevent, diagnose, and treat diseases, such as cancers caused by HPV. NCI’s Cancer Information Service can help you learn about HPV-related trials in the United States.
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