What is HPV?
HPV is the most common STI. There were about 43 million HPV infections in 2018, many among people in their late teens and early 20s. There are many different types of HPV. Some types can cause health problems, including genital warts and cancers. But there are vaccines that can stop these health problems from happening. HPV is a different virus than
HIV and
HSV (herpes).
How is HPV spread?
You can get HPV by having vaginal, anal, or oral sex with someone who has the virus. It is most commonly spread during vaginal or anal sex. It also spreads through close skin-to-skin touching during sex. A person with HPV can pass the infection to someone even when they have no signs or symptoms.
If you are sexually active, you can get HPV, even if you have had sex with only one person. You also can develop symptoms years after having sex with someone who has the infection. This makes it hard to know when you first got it.
Does HPV cause health problems?
In most cases (9 out of 10), HPV goes away on its own within two years without health problems. But when HPV does not go away, it can cause health problems like genital warts and cancer.
Genital warts usually appear as a small bump or group of bumps in the genital area. They can be small or large, raised or flat, or shaped like a cauliflower. A healthcare provider can usually diagnose warts by looking at the genital area.
Does HPV cause cancer?
HPV can cause cervical and other
cancers, including cancer of the vulva, vagina, penis, or anus. It can also cause cancer in the back of the throat (called
oropharyngeal cancer). This can include the base of the tongue and tonsils.
Cancer often takes years, even decades, to develop after a person gets HPV. Genital warts and cancers result from different types of HPV.
There is no way to know who will develop cancer or other health problems from HPV. People with weak immune systems (including those with HIV) may be less able to fight off HPV. They may also be more likely to develop health problems from HPV.
How can I avoid HPV and the health problems it can cause?
You can do several things to lower your chances of getting HPV.
Get vaccinated. The HPV vaccine is safe and effective. It can protect against diseases (including cancers) caused by HPV when given in the recommended age groups. (See “Who should get vaccinated?” below.)
Get screened for cervical cancer. Routine screening for women aged 21 to 65 years old can prevent cervical cancer.
If you are sexually active:
- Use condoms the right way every time you have sex. This can lower your chances of getting HPV. But HPV can infect areas the condom does not cover. So, condoms may not fully protect against getting HPV; and
- Be in a mutually monogamous relationship – or have sex only with someone who only has sex with you.