What Is HPV? A Guide to Human Papillomavirus, Types, Risks, and Prevention

More than 42 million people in the United States are infected with the types of HPV known to cause disease, with about 13 million new infections every year, according to the CDC. If you just received a positive HPV result, an abnormal Pap smear, or simply typed “what is HPV” into a search bar at midnight, you are far from alone. This guide explains exactly what HPV is, how it spreads, what it can and cannot do to your health, and what you can do about it — in plain, honest English.

Quick Answer: HPV (human papillomavirus) is the most common sexually transmitted infection. It spreads through skin-to-skin and sexual contact, and there are more than 200 types — low-risk types cause warts, while high-risk types can lead to cancer. Most infections cause no symptoms and clear on their own within about two years.

Key Takeaways

• HPV is the most common sexually transmitted infection worldwide; most sexually active people will have it at some point in their lives.
• More than 200 HPV types exist — most are harmless, but a small group of high-risk types can cause cancer if the infection persists.
• The majority of HPV infections clear on their own without treatment, typically within one to two years.
• No approved drug eliminates the virus itself, but vaccines, regular screening, and safe-sex practices are highly effective prevention tools.
• A positive HPV diagnosis does not prove infidelity; the virus can remain dormant for months or years before being detected.

What Is HPV?

What HPV Stands For and What It Is

HPV stands for human papillomavirus. It is not a single virus but a large family of more than 200 related viruses, each identified by a number — HPV-6, HPV-16, HPV-18, and so on. These viruses infect the skin and the moist membranes that line body surfaces such as the cervix, vagina, vulva, penis, anus, mouth, and throat.

HPV is classified as the most common sexually transmitted infection (STI) in the world. The World Health Organization estimates that virtually all sexually active people will be infected with at least one type of HPV at some point during their lifetime. The sheer scale of that fact is worth pausing on: this is not a rare or unusual infection. It is, by global health standards, nearly universal.

Different HPV types behave very differently. Some cause visible warts on the skin or genitals. Others infect cells silently and, in a small number of cases, trigger changes that can progress to cancer over many years. Understanding which category applies to your situation is the key to knowing what to do next.

Is HPV a Virus or a Disease?

HPV is a virus — specifically, a small, non-enveloped DNA virus in the Papillomaviridae family. “HPV” is not the name of a single disease. It is the name of a viral group whose members can cause a wide range of outcomes: nothing at all (the most common result), genital or skin warts, precancerous cell changes, or, in persistent high-risk cases, cancer.

Calling HPV “a disease” oversimplifies it in a way that causes unnecessary fear. Calling it “nothing to worry about” oversimplifies it in the opposite direction. The honest framing is this: most HPV infections are harmless and temporary, but a specific subset of high-risk types, when they persist, are the reason HPV demands medical attention.

How Common Is HPV?

The CDC reports that HPV is so prevalent that nearly all sexually active men and women will get it at some point. More than 42 million people in the US are currently infected with disease-causing types of HPV, with about 13 million new infections each year. In the United Kingdom, the NHS estimates that around 8 in 10 people will have HPV at some point in their lives.

For a fuller picture of prevalence, age-specific rates, and what those numbers mean for your personal risk, see how common HPV really is.

How Do You Get HPV?

HPV spreads primarily through direct skin-to-skin contact, most often during vaginal, anal, or oral sex. Penetration is not required — the virus can transmit through genital skin contact alone. This is one reason condoms, while helpful, do not eliminate transmission risk entirely: they cover only part of the skin that may carry the virus.

A person can have HPV for months or years without knowing it. Because the virus often produces no symptoms, it is impossible to pinpoint exactly when or from whom an infection was acquired. This dormancy factor is medically significant and personally important: a new HPV diagnosis does not tell you — or your partner — when the infection happened.

Key transmission points at a glance:

Route	Risk Level	Notes
Vaginal or anal sex	High	Most common route
Oral sex	Moderate	Can lead to oral/throat HPV
Genital skin contact (no penetration)	Moderate	Condoms do not fully protect
Sharing sex toys	Low–moderate	Virus can survive briefly on surfaces
Non-sexual skin contact	Very low	Some cutaneous types only

For a detailed breakdown of transmission, including what reduces risk and what does not, read exactly how HPV spreads.

Is HPV an STD? How It Compares to Herpes and Other STIs

Yes, HPV is an STI (sexually transmitted infection) — sometimes called an STD (sexually transmitted disease), though “STI” is the preferred clinical term because many infections never produce disease symptoms.

A common source of confusion is the HPV-vs-herpes question. They are entirely different viruses. Herpes is caused by the herpes simplex virus (HSV-1 or HSV-2), which belongs to a completely separate viral family. Herpes typically causes recurring sores or blisters and, once acquired, stays in the body permanently. HPV, by contrast, is usually cleared by the immune system within two years and does not cause the same type of recurring outbreaks.

The two infections do share some surface similarities — both are common, both spread through skin-to-skin contact, and both can be present without visible symptoms — which is why people often conflate them. But the viruses, their behaviors, and their long-term implications are distinct.

HPV also differs meaningfully from chlamydia, gonorrhea, and syphilis, which are bacterial and can be cured with antibiotics. No antibiotic clears HPV. To understand exactly how HPV compares to herpes and other STIs, visit how HPV differs from herpes.

HPV Types: Low-Risk vs High-Risk

Not all HPV types are created equal. The 200+ types are divided into two broad clinical categories:

Low-risk HPV types — most notably HPV-6 and HPV-11 — do not cause cancer. They are responsible for approximately 90% of genital warts cases and some cases of recurrent respiratory papillomatosis (a rare condition causing warts in the throat).

High-risk HPV types — a group of about 12–14 types, with HPV-16 and HPV-18 being the most significant — can, when persistent, cause cellular changes that may progress to cancer. HPV-16 and HPV-18 together account for approximately 70% of all cervical cancers worldwide.

Category	Key Types	Associated Conditions
Low-risk	6, 11	Genital warts, respiratory papillomatosis
High-risk	16, 18, 31, 33, 45, 52, 58	Cervical, anal, oropharyngeal, penile, vulvar, vaginal cancers

It is worth stating clearly: being infected with a high-risk type does not mean cancer is inevitable. The vast majority of high-risk HPV infections also clear on their own. It is the persistent infection — one that does not resolve over years — that creates cancer risk. For a complete breakdown of all HPV types and what they mean, see the HPV types explained.

HPV Symptoms

Here is the reality most people are not told upfront: most HPV infections produce no symptoms at all.

The immune system handles the virus quietly, and the infected person never knows it happened. When symptoms do appear, they depend almost entirely on which type of HPV is involved.

Low-risk HPV may cause:

• Genital warts (soft, flesh-colored growths on or around the genitals, anus, or inner thighs)
• Common skin warts (on hands, feet, or other body surfaces — caused by non-genital types)
• Flat warts

High-risk HPV typically causes no visible symptoms. Changes to cervical cells — known as cervical dysplasia or CIN (cervical intraepithelial neoplasia) — are detected only through screening tests, not by how a person feels. By the time high-risk HPV has caused symptoms, the disease has usually progressed significantly, which is exactly why screening matters.

If you have been diagnosed with HPV and feel no symptoms, that is normal and expected. The silence of the virus is not reassurance that nothing is happening — it is simply how HPV works. For the complete picture of what to watch for, read the full list of HPV symptoms.

How HPV Is Diagnosed

Diagnosis depends heavily on sex, age, and the type of HPV involved.

For people with a cervix (most commonly women):

• The Pap smear (cervical smear) detects abnormal cell changes in the cervix that may be caused by HPV.
• The HPV test directly detects high-risk HPV DNA in cervical cells.
• In the US, current ACIP/ACOG guidelines recommend co-testing (Pap + HPV) or primary HPV testing starting at age 25–30, depending on the approach used.
• In the UK, the NHS cervical screening program invites people aged 25–64 for regular smear tests, with HPV primary testing now standard.

For men and people without a cervix:

• There is currently no FDA-approved routine HPV test for men.
• Genital warts are diagnosed by visual examination.
• Anal Pap smears may be offered to high-risk groups (men who have sex with men, people living with HIV).

A positive HPV test on a cervical screen is not a cancer diagnosis. It is a signal to monitor or investigate further. For a full explanation of what tests exist, what they detect, and what results mean, see how HPV testing works.

Is HPV Dangerous? HPV and Cancer

For most people, HPV is not dangerous. The immune system clears the infection — usually within one to two years — without any medical intervention and without lasting harm.

The concern arises with persistent high-risk HPV infection. When the immune system fails to clear a high-risk type, the virus can cause cellular changes over a period of years or even decades. Left undetected and untreated, those changes can progress to cancer.

HPV is responsible for:

• Nearly 100% of cervical cancers
• About 91% of anal cancers
• Around 70% of oropharyngeal (throat) cancers
• A significant proportion of vulvar, vaginal, and penile cancers

Globally, HPV is responsible for an estimated 690,000 cancers each year — roughly 620,000 in women and 70,000 in men. In the US, the CDC estimates HPV causes about 36,000 cancers annually.

That number is real and it matters. So does this one: the vast majority of HPV infections never reach that stage. Regular screening exists precisely to catch precancerous changes before they become cancer — and it works. To understand the full risk spectrum, read whether HPV is dangerous and the link between HPV and cancer.

Can HPV Be Treated or Cured?

No antiviral drug currently approved can eliminate HPV from the body. The virus itself cannot be “cured” in the pharmaceutical sense.

What medicine can do:

• Treat the symptoms HPV causes — genital warts can be removed through topical medications, cryotherapy (freezing), laser treatment, or minor surgical procedures.
• Treat precancerous cell changes — abnormal cervical cells detected through screening can be removed before they progress, using procedures such as LLETZ (loop excision) or cone biopsy.
• Support the immune system — the body’s own immune response is the primary mechanism for clearing HPV. Healthy lifestyle factors (not smoking, managing stress, adequate sleep) support immune function, though none are proven HPV treatments.

One area of active research is AHCC (active hexose correlated compound), a supplement derived from shiitake mushrooms that some small studies have examined for its potential to support HPV clearance. The evidence is preliminary and not yet sufficient to recommend it as a treatment, but research is ongoing.

The good news: because most HPV clears naturally, “no cure” does not mean “no resolution.” For a complete look at what can be done, visit HPV treatment options and whether HPV goes away on its own.

Preventing HPV — The Vaccine and Beyond

Prevention is where medicine has made its most significant gains against HPV.

The HPV vaccine is the most powerful tool available. The current vaccine used in most countries — Gardasil 9 — protects against nine HPV types, including the high-risk types 16 and 18 (responsible for most HPV-related cancers) and the low-risk types 6 and 11 (responsible for most genital warts).

Key prevention points:

• In the US, the ACIP recommends vaccination at ages 11–12, with catch-up vaccination available through age 26 for all, and shared decision-making for ages 27–45.
• In the UK, the NHS offers the HPV vaccine to all young people aged 12–13 as part of the school immunization program, with catch-up available.
• The vaccine works best before exposure to HPV — meaning before sexual activity begins — but can still provide benefit afterward by protecting against types not yet encountered.
• Condoms reduce transmission risk but do not eliminate it, as HPV can infect skin not covered by a condom.
• Regular cervical screening does not prevent infection but catches its consequences early enough to prevent cancer.

For a full guide to the vaccine schedule, efficacy data, and who should get it, read the HPV vaccine explained.

HPV in Men vs Women

HPV infects men and women at similar rates, but the clinical experience differs significantly.

In women, the primary concern is cervical cancer, and there is an established, effective screening system (Pap smear and HPV test) to detect problems early. HPV also causes vulvar, vaginal, and anal cancers in women.

In men, there is no routine approved screening test for HPV. Men can develop genital warts, anal cancer, penile cancer, and oropharyngeal cancer from HPV. Men who have sex with men face a higher risk of anal HPV and anal cancer. The absence of routine testing means many men are unaware of their HPV status.

Both men and women benefit from vaccination. Both can transmit HPV. The difference is largely in how medicine currently monitors and responds to infection in each group.

For sex-specific information, read HPV in men and HPV in women.

Oral HPV

HPV can infect the mouth and throat, usually through oral sex. Most oral HPV infections, like genital infections, produce no symptoms and clear on their own.

The concern is a specific subset: oropharyngeal cancer (cancer of the back of the throat, base of the tongue, and tonsils) linked to HPV-16. Rates of HPV-positive oropharyngeal cancer have risen significantly over recent decades, particularly in men. In the US, HPV-associated oropharyngeal cancer is now more common than cervical cancer.

There is currently no approved screening test for oral HPV in the general population. Dentists and doctors may notice suspicious lesions during routine examinations, but there is no equivalent of the cervical smear for the throat.

The HPV vaccine is believed to protect against oral HPV as well, though long-term data specific to oral infection outcomes are still accumulating. For everything known about this topic, see oral HPV explained.

HPV and Relationships

An HPV diagnosis can feel like a relationship crisis. It is not.

Because HPV can remain dormant for months or years — sometimes a decade or more — a new positive result cannot tell you when the infection occurred or who transmitted it. This is not a legal disclaimer. It is basic virology. Attributing a diagnosis to a specific partner or a specific act of infidelity is medically impossible.

Long-term couples where one or both partners test positive for HPV can and do maintain healthy, fulfilling relationships. Open communication with a partner, regular screening, and vaccination (if not already done) are the practical steps. The emotional weight of a diagnosis is real, but the diagnosis itself is not evidence of wrongdoing on anyone’s part.

HPV does not make intimacy impossible, and it does not define a relationship’s future. For more on navigating disclosure, partner conversations, and sexual health after a diagnosis, read HPV and relationships.

Myths and Misconceptions About HPV

Misinformation about HPV causes real harm — it delays diagnosis, damages relationships, and prevents people from getting vaccinated. Here are the most common myths, corrected.

Myth: “HPV always means cancer.”
False. The overwhelming majority of HPV infections clear without causing cancer or any lasting harm. Cancer risk applies only to persistent high-risk types, and even then, regular screening can catch precancerous changes before they progress.

Myth: “Only women get HPV.”
False. HPV infects men and women equally. Men develop genital warts, penile cancer, anal cancer, and oropharyngeal cancer from HPV. The misconception persists partly because cervical screening programs are female-specific, but the virus itself has no sex preference.

Myth: “An HPV diagnosis means my partner cheated.”
False. HPV can lie dormant for years or decades. A positive test today could reflect an infection acquired years ago from a previous partner. It is not possible to determine the source or timing of an HPV infection from a test result alone.

Myth: “Condoms fully prevent HPV.”
False. Condoms significantly reduce the risk of many STIs and do reduce HPV transmission risk, but they do not cover all potentially infected skin. HPV can spread through contact with areas not protected by a condom.

Myth: “If I have no symptoms, I can’t pass it on.”
False. HPV is most commonly transmitted by people who have no symptoms and no idea they are infected. Absence of symptoms does not mean absence of the virus.

Frequently Asked Questions

What is HPV in simple terms?

HPV (human papillomavirus) is a very common virus that spreads through skin-to-skin and sexual contact. Most people who have it never know, because the immune system clears it without causing any symptoms or health problems.

Is HPV the same as herpes?

No. HPV and herpes are caused by completely different viruses. Herpes is caused by the herpes simplex virus (HSV) and tends to cause recurring sores; it stays in the body permanently. HPV is caused by human papillomavirus, usually clears within two years, and is associated with warts and, in some cases, cancer — not the same type of sores or outbreaks.

How do you get HPV?

HPV spreads through direct skin-to-skin contact, most commonly during vaginal, anal, or oral sex. It can also transmit through genital contact without penetration. Condoms reduce but do not eliminate the risk.

Does HPV go away?

In most cases, yes. The immune system clears most HPV infections within one to two years without any treatment. A smaller number of infections — particularly high-risk types — can persist, which is why regular screening is important.

Is HPV dangerous?

For most people, no. Most infections are harmless and self-clearing. The danger lies in persistent infection with high-risk types, which can lead to cervical cancer and other cancers over many years. Regular screening and vaccination dramatically reduce that risk.

Can men get HPV?

Yes. Men get HPV just as commonly as women. HPV can cause genital warts, anal cancer, penile cancer, and oropharyngeal cancer in men. There is currently no routine approved HPV screening test for men, but the vaccine protects men and women alike.

Does HPV mean my partner cheated?

No. HPV can remain dormant in the body for years or even decades before being detected. A positive test result cannot identify when the infection occurred or who transmitted it. It is not possible — medically or scientifically — to draw conclusions about fidelity from an HPV diagnosis.

Conclusion

HPV is extraordinarily common, usually harmless, and almost always cleared by the body without intervention. That is the honest starting point for anyone processing a new diagnosis or a worrying test result. The fear and shame that often accompany an HPV diagnosis are understandable — and largely unwarranted.

At the same time, the small subset of high-risk HPV infections that persist over years are the reason this virus deserves serious attention. Cervical cancer, oropharyngeal cancer, and anal cancer are real consequences of unmonitored, persistent high-risk HPV. The good news is that medicine has effective tools to prevent and detect these outcomes.

Actionable next steps:

• If you have received a positive HPV result or an abnormal Pap smear, follow your healthcare provider’s recommended follow-up schedule — do not skip it.
• If you have not been vaccinated against HPV and are within the recommended age range, ask your doctor or pharmacist about Gardasil 9.
• If you are due for cervical screening, book your appointment. Screening is the single most effective way to catch HPV-related cell changes before they become cancer.
• Talk to your partner honestly. A diagnosis is not an accusation; it is medical information.
• Use this guide as a map. Each section above links to a deeper resource on that specific topic — use those pages to get the detail you need.

HPV is manageable. With the right information, the right screening, and the right medical support, the vast majority of people with HPV go on to live completely normal, healthy lives.

References

• Centers for Disease Control and Prevention. (2021). Human Papillomavirus (HPV). https://www.cdc.gov/hpv/index.html
• World Health Organization. (2023). Human papillomavirus (HPV) and cervical cancer. https://www.who.int/news-room/fact-sheets/detail/human-papillomavirus-(hpv)-and-cervical-cancer
• NHS. (2023). Human papillomavirus (HPV). https://www.nhs.uk/conditions/human-papillomavirus-hpv/
• National Cancer Institute. (2023). HPV and Cancer. https://www.cancer.gov/about-cancer/causes-prevention/risk/infectious-agents/hpv-and-cancer
• Chesson, H. W., Dunne, E. F., Hariri, S., & Markowitz, L. E. (2014). The estimated lifetime probability of acquiring human papillomavirus in the United States. Sexually Transmitted Diseases, 41(11), 660–664. https://doi.org/10.1097/OLQ.0000000000000193
• American College of Obstetricians and Gynecologists. (2022). Cervical Cancer Screening and Prevention. https://www.acog.org/clinical/clinical-guidance/practice-bulletin/articles/2016/12/cervical-cancer-screening-and-prevention
• Gillison, M. L., Chaturvedi, A. K., Anderson, W. F., & Fakhry, C. (2015). Epidemiology of human papillomavirus-positive head and neck squamous cell carcinoma. Journal of Clinical Oncology, 33(29), 3235–3242. https://doi.org/10.1200/JCO.2015.61.6995

This content is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any questions about your health.