HPV spreads primarily through skin-to-skin sexual contact, including vaginal, anal, and oral sex. It is the most common sexually transmitted infection in the United States, with about 13 million new infections each year and more than 42 million Americans currently infected with disease-causing strains. You don’t need to have intercourse to get it. Any intimate skin-to-skin contact with an infected area can pass the virus.
Sexual Contact Is the Primary Route
The most common way HPV spreads is through vaginal or anal sex with someone who carries the virus. But penetration isn’t required. HPV lives in skin cells, not in bodily fluids, so it passes between people whenever infected skin touches another person’s skin or mucous membranes. Genital-to-genital touching, hand-to-genital contact, and sharing sex toys can all transmit it.
Condoms reduce the risk significantly but don’t eliminate it. A study in The Journal of Infectious Diseases found that men who always used condoms had a 60% to 77% lower risk of infection with cancer-causing HPV strains compared to those who used them inconsistently. The gap in protection exists because HPV can live on skin that a condom doesn’t cover, like the surrounding groin, upper thighs, and scrotum.
Oral Sex and Deep Kissing
HPV can infect the mouth and throat through oral sex and deep tongue kissing. Men are more likely than women to develop oral HPV infections. The strain HPV-16 is linked to almost all HPV-related throat cancers, known as oropharyngeal cancers. These cancers typically develop only after someone has carried an oral HPV infection for many years, often 10 to 20 years between initial infection and a cancer diagnosis.
Dental dams and condoms during oral sex lower the risk but, like genital protection, can’t block transmission completely. Having more sexual partners, using tobacco or alcohol, and having a weakened immune system all increase your risk of picking up an oral HPV infection.
Transmission From Mother to Baby
A mother can pass HPV to her newborn during vaginal delivery. One study found a vertical transmission rate of about 21%, and all HPV-positive newborns were born to mothers who tested positive. Vaginal delivery and carrying multiple HPV types both increased the likelihood. The good news: neonatal HPV infection appears to be temporary. In the same study, no infants tested positive at two months of age, and no HPV was detected in placental tissue or cord blood.
In rare cases, HPV transmitted during birth causes a condition called recurrent respiratory papillomatosis, where wart-like growths develop in a child’s airway. About 3% to 5% of those cases eventually become cancerous.
Can You Get HPV From Surfaces or Objects?
HPV is unusually tough for a virus. It resists heat and drying and can survive on inanimate objects like clothing and medical equipment that have touched infected skin. The exact survival time on surfaces isn’t known, but prolonged contact with contaminated items is considered a possible, though far less common, route of transmission. This means shared towels, undergarments, or unsterilized medical instruments are theoretically capable of carrying the virus. Still, skin-to-skin sexual contact remains overwhelmingly the dominant way people get HPV.
Why Many People Never Know They Have It
Most HPV infections produce no symptoms at all. When symptoms do appear, the timeline varies dramatically depending on the type. Genital warts typically show up three weeks to eight months after exposure, with an average of about three months. Cancer-causing strains, on the other hand, can sit silently for a decade or more before abnormal cell changes become detectable. That long gap is why routine screening like Pap tests and HPV tests matters so much for cervical health.
Roughly 90% of HPV infections clear on their own within six to 18 months as the immune system suppresses the virus. The infections that persist, particularly with high-risk strains, are the ones that carry cancer risk over time. A healthy immune system is your strongest natural defense against a lasting infection.
Who Is Most at Risk
Nearly all sexually active people will encounter HPV at some point. Your risk is higher if you have multiple sexual partners, start sexual activity at a younger age, or have a weakened immune system (from conditions like HIV or from immunosuppressive medications). Smoking also impairs your body’s ability to clear HPV, making persistent infections more likely.
HPV vaccination is the most effective prevention tool available. The vaccine targets the strains responsible for most HPV-related cancers and genital warts. It works best when given before any sexual exposure, which is why it’s recommended starting at age 11 or 12, but it provides benefit for many adults through age 26 and in some cases up to 45. Combining vaccination with consistent condom use offers the strongest practical protection against HPV transmission.