HPV Leading To Other Kinds Of Cancers, But Vaccine Does Help To Reduce Cervical Cancer

Yes: high-risk HPV causes cancers well beyond the cervix, including anal, throat, penile, vulvar, and vaginal cancers, and oropharyngeal cancer has now overtaken cervical as the most common HPV-related cancer in the US. The HPV vaccine prevents more than 90% of these cancers when given at the recommended ages American Cancer Society.

The essentials: one virus, two very different problems

HPV is the most common sexually transmitted infection CDC. People tend to blur two separate things into one fear, so it helps to split them. Low-risk types, mainly 6 and 11, cause genital warts. High-risk types, 16, 18, and several others, cause cancers. The types that cause warts do not cause cancer, and the types that cause cancer rarely cause anything you can see or feel. For a wider primer on the family of types, see HPV overview.

In about 9 out of 10 cases, HPV clears on its own within two years without ever causing a health problem. Cancer happens when a high-risk infection doesn't clear and persists for years, slowly driving normal cells toward precancer and, eventually, cancer. That long, silent window gives screening and vaccination time to catch it.

HPV's cancer toll reaches far past the cervix NCI. It causes virtually all cervical cancer, over 90% of anal cancers, and about 70% of throat (oropharyngeal) cancers, plus vulvar, vaginal, and penile cancers. Types 16 and 18 alone cause about 66% of cervical cancers; five more high-risk types, 31, 33, 45, 52, and 58, account for roughly another 15%.

Symptoms: why high-risk HPV is so quiet

Most HPV infections are asymptomatic and cause no clinical disease at all. High-risk types give no warning: no bump, no discharge, no pain, so precancer is found by screening rather than by how you feel. By the time an HPV-driven cancer causes symptoms, it has usually been growing for years.

Genital warts are the exception you can actually see. They usually show up as a small bump or a group of bumps in the genital area, sometimes flat, sometimes cauliflower-shaped. They're caused by low-risk types and are not a sign that you're at higher cancer risk. If warts are your concern, the practical details live in genital warts treatment, and because they can return, genital wart recurrence covers what to expect afterward.

Testing: how HPV is actually found

There's no all-purpose "HPV test" you order off a standard STD panel. HPV testing isn't recommended to screen men, adolescents, or women under age 30. For women, high-risk HPV is found through cervical screening, not a blood draw or urine cup. Current guidance starts cervical screening at age 25 with a primary HPV test every 5 years as the preferred approach, rather than a yearly Pap American Cancer Society. Because most HPV clears within two years on its own, HPV testing finds more precancer with fewer visits and fewer false alarms than annual cytology.

HPV testing is not used to diagnose warts: the result doesn't change how warts are managed, so warts are diagnosed by looking. There's no routine HPV screening test for men. For anal cancer, CDC's 2021 guidance found the data insufficient to recommend routine anal cytology, even for men who have sex with men or people with HIV. That position predates the 2022 ANCHOR trial, which showed that treating anal high-grade lesions reduced anal cancer in people with HIV; some specialty groups now suggest periodic anal Pap for high-risk patients where high-resolution anoscopy referral exists, but it is not a blanket CDC recommendation.

If a recent exposure is what's worrying you, timing matters for the infections that do have a screening test: see when to test after exposure, and you can get tested for the full panel when it's appropriate.

Treatment: warts versus precancer are managed separately

There's no treatment that cures the HPV virus itself. What gets treated are the things HPV causes, warts and precancers, and they're handled on completely different tracks CDC.

For genital warts, options fall into two groups. You can apply a prescription cream or gel at home over weeks, or a clinician can remove them in the office.

• Patient-applied at home: imiquimod 3.75% or 5% cream, podofilox 0.5% solution or gel, or sinecatechins 15% ointment (sinecatechins are not recommended for people who are immunocompromised or living with HIV).
• Provider-administered in clinic: cryotherapy with liquid nitrogen or a cryoprobe (freezing), trichloroacetic or bichloroacetic acid (TCA/BCA) 80%: 90% solution, or surgical removal by excision, curettage, laser, or electrosurgery.

In real life, a clinic freezes the warts or you treat them at home over several weeks. No single method is clearly best, and none of them removes the underlying virus, so warts can come back even after they clear. Cancer precursors are managed through the screening-and-follow-up pathway, colposcopy, biopsy, and removal of abnormal cells, never through wart therapy.

Prevention: the vaccine is the strongest tool you have

The HPV vaccine is cancer prevention with hard numbers behind it. Given at the recommended ages, it can prevent more than 90% of HPV-caused cancers, and Gardasil 9 is about 98% effective against the precancers caused by types 16 and 18. The shot used in the US today is Gardasil 9, which protects against nine types: 6, 11, 16, 18, 31, 33, 45, 52, and 58 CDC.

That nine-type coverage matters because of which cancers it blocks. Types 16 and 18 drive about two-thirds of cervical cancers, the five additional high-risk types add roughly another 15%, and types 6 and 11 cause more than 90% of genital warts, so one vaccine covers both the cancer story and the wart story. Earlier vaccines covered fewer types (the quadrivalent Gardasil covered 6, 11, 16, 18; the bivalent Cervarix covered 16 and 18), but since 2016 only the 9-valent Gardasil 9 has been distributed in the US, so it protects against more cancer-causing types than the older shots.

There are two things the vaccine does not do. It won't clear an infection or warts you already have, so it works best before exposure. And vaccinated people still need cervical screening, because no vaccine covers every high-risk type. Beyond the shot, condoms give partial protection only, since HPV can infect skin a condom doesn't cover, and cervical screening catches precancer early.

When to see a clinician

• You're due for cervical screening: currently recommended starting at age 25, then a primary HPV test every 5 years as the preferred interval.
• You notice new bumps in the genital area and want them diagnosed and treated.
• You have warts that keep coming back or aren't responding to home treatment.
• You're in a high-risk group (for example, living with HIV) and want to discuss whether anal screening is appropriate where high-resolution anoscopy is available.
• You're unvaccinated and want to ask whether the HPV vaccine still makes sense for you.

Keep exploring on EasySTD: your risk of an STD, STD vaccines and HPV testing.