Are There Different Types Of Hpv? | What Each Type Means

HPV includes many strains, with some causing warts and others raising the risk of cervical, anal, penile, vulvar, vaginal, and throat cancers.

HPV is not one single virus. There are different types of HPV, and they do not all behave the same way. The type can shape what doctors watch for, what screening picks up, and what the vaccine helps prevent.

Some HPV types are low risk. They can cause warts, but they rarely lead to cancer. Other types are high risk. Those are the ones tied to cell changes that can turn into cancer after a long-lasting infection.

Most HPV infections clear on their own within a year or two. Trouble starts when a high-risk type sticks around.

Are There Different Types Of Hpv? The Groups Doctors Watch

Yes, and doctors usually sort them into two broad groups: low-risk HPV and high-risk HPV. Low-risk types can cause genital warts and other wart-like growths. High-risk types are the ones linked to precancer and cancer.

Experts group sexually transmitted HPV types into low-risk and high-risk strains. That split sounds simple, but it helps explain why one HPV result may call for routine follow-up while another needs closer watching.

That doesn’t mean every high-risk infection turns into cancer. Far from it. In most people, the immune system gets control of the virus before it causes lasting damage. Still, the type matters because persistent infection with a high-risk strain calls for closer follow-up.

Low-Risk Types

Low-risk HPV types rarely lead to cancer. The best-known pair is HPV 6 and HPV 11. These are the types most often linked to genital warts. They can also cause growths in the airway in rare cases.

Low-risk does not mean “harmless” in every case. Warts can still be upsetting and stubborn to treat. Still, they are not the types doctors worry about most when they’re trying to prevent cancer.

High-Risk Types

High-risk HPV types are also called oncogenic types. These are the strains that can cause abnormal cell changes in the cervix, anus, penis, vulva, vagina, and throat. If the infection lasts for years, those changes can move from mild to severe.

HPV 16 gets the most attention for a reason. It’s strongly linked to cervical cancer and also shows up in many HPV-related throat cancers. HPV 18 is another major type, especially in cervical cancer. Then there are other high-risk strains, such as 31, 33, 45, 52, and 58, that also matter.

How HPV Types Are Usually Grouped

The table below gives a simple map of the types people hear about most often. It does not list every HPV type, but it covers the ones that come up again and again in screening, vaccination, and cancer prevention.

HPV Type Or Group	Risk Level	What It’s Known For
HPV 6	Low risk	Common cause of genital warts
HPV 11	Low risk	Common cause of genital warts
HPV 16	High risk	Strongly linked to cervical and throat cancers
HPV 18	High risk	Strongly linked to cervical cancer
HPV 31	High risk	Linked to cervical precancer and cancer
HPV 33	High risk	Linked to cervical precancer and cancer
HPV 45	High risk	Linked to cervical cancer
HPV 52	High risk	Seen in cervical screening and cancer prevention
HPV 58	High risk	Seen in cervical screening and cancer prevention

This grouping also helps explain the vaccine. In the United States, the current HPV vaccine protects against nine types: 6, 11, 16, 18, 31, 33, 45, 52, and 58. So it covers the pair that causes most genital warts and several types tied to cancer.

The CDC’s HPV Vaccination page says the vaccine used in the United States is Gardasil 9, and it protects against those nine types. CDC also says HPV vaccination works best before exposure to the virus.

Why The Type Matters In Real Life

If you’ve had an HPV test, this is where the type starts to matter. Some test results name HPV 16 or HPV 18 on their own because those strains carry a higher cancer risk. Other results group the remaining high-risk types together.

That’s why a positive HPV result can mean different things for different people. A temporary infection with a high-risk type is not the same as a long-lasting infection. Your age, screening history, and whether abnormal cells are present all shape the next step.

Here’s the practical way to think about it:

• Low-risk HPV types are mostly tied to warts.
• High-risk HPV types are tied to abnormal cell changes and cancer risk.
• HPV 16 and HPV 18 get the closest attention.
• Most infections clear without causing lasting trouble.
• Screening is about finding cell changes early, before cancer forms.

The World Health Organization’s HPV fact sheet says HPV is a group of 200 known viruses and that in 90% of people the body controls the infection by itself. WHO also notes that persistent infection with high-risk HPV types causes cervical cancer and is linked to several other cancers.

What Screening And Vaccination Actually Cover

One common mix-up is thinking that all HPV tests look for every type. They don’t. Standard clinical HPV tests are built to detect high-risk types, not the low-risk ones that cause most genital warts. That’s why testing is used in cervical screening, not as a general “check every strain” tool.

Vaccination works differently. It tries to block future infection from the types in the vaccine before exposure happens. It does not treat an infection you already have, and it does not erase cell changes that are already there.

Tool	What It Covers	What It Does Not Do
HPV Vaccine	Helps prevent infection from selected HPV types	Does not treat current HPV infection
HPV Test	Looks for high-risk HPV types in cervical screening	Does not check every low-risk wart-causing type
Pap Test	Looks for abnormal cervical cell changes	Does not identify all HPV types by name
Wart Treatment	Removes visible warts or lowers symptoms	Does not wipe HPV out of the body on command

A vaccine, a screening test, and a treatment visit each do a different job. Put them together, and they give doctors several ways to lower risk.

Which HPV Types Cause Cancer Most Often

The National Cancer Institute’s HPV and Cancer page says HPV includes more than 200 related viruses and lists 12 high-risk types tied to cancer. It also names HPV 16 and HPV 18 as the two types behind most HPV-related cancers. HPV 16 is also strongly tied to many oropharyngeal cancers, which affect the throat area.

On the flip side, HPV 6 and HPV 11 are best known for genital warts. So when people ask whether all HPV types are equally dangerous, the plain answer is no.

Some types are mostly wart-causing. Some are mostly cancer-linked. Some fade away before they do either. That’s why hearing “you have HPV” without knowing the type can feel vague. The type adds context.

What To Take From All This

There are different types of HPV, and the differences are not just technical details. They affect what the virus is likely to do, what doctors screen for, and what the vaccine tries to block.

If you want the shortest useful version, keep these points in mind:

• HPV is a family of many related viruses, not one single strain.
• Low-risk types, especially 6 and 11, are usually linked to genital warts.
• High-risk types, especially 16 and 18, are linked to several cancers.
• Most infections clear on their own.
• Persistent high-risk HPV is the part doctors watch most closely.
• Vaccination and routine screening lower the chance that HPV turns into something serious.

So yes, there are different types of HPV. Once you know the split between low-risk and high-risk strains, the rest of the topic gets much easier to follow.