Skip to main content

HPV (Human Papillomavirus)

Human papillomavirus (HPV) is the most common sexually transmitted infection that can cause certain cancers and genital warts. More than 14 million new HPV infections occur in the US each year, and about 80 percent of sexually active men and women are infected with HPV at some point in their lives. Most new infections are in people in their teens and early 20s. Most people will have no symptoms and never know they have the virus, but while infected, can pass on the virus to their partner.

Although most infections go away on their own in about two years, HPV infections that do not go away can lead to cancer. HPV causes almost all cervical cancer in the US and can also cause cancer of the vulva, vagina, penis, anus, mouth, and throat.

People can pass the virus on even if they have no symptoms and even if years have passed since they were first infected.


The Centers for Disease Control and Prevention (CDC) recommends 11- to 12-year-olds get two doses of HPV vaccine to protect against cancers caused by HPV. The second dose should be given 6-12 months after the first dose.

Both males and females up to age 26 years who were not vaccinated at age 11 or 12 years should receive catch-up HPV vaccination. Three doses are recommended for those who initiate the vaccination series after age 15 years, and for those who have weakened immune systems (such as people with cancer and certain disorders). HPV vaccine may be given beginning at age 9 years, and as late as age 45.

Adults age 27-45 years should talk to a healthcare professional about whether HPV vaccination is right for them. Shared clinical decision-making is recommended because some individuals who are not adequately vaccinated might benefit from vaccination.

View additional information on the CDC recommendations.

Additional Resources

Facts About HPV for Adults

There are more than 14 million new HPV infections in the US each year and more than 80 percent of sexually active men and women will get it in their lifetime