The short answer
The HPV vaccine protects against the human papillomavirus types that cause most cervical cancers and several other cancers. It is routinely recommended at ages 11 to 12 and through age 26, with a shared decision for some adults 27 to 45. It has a strong safety record.
The HPV vaccine protects against HPV types that cause most cervical and several other cancers.
It is routinely recommended for children at age 11 or 12 and can start at age 9.
Catch-up vaccination is recommended through age 26 for those not vaccinated earlier.
Some adults 27 to 45 may benefit after a shared decision with their provider.
Watch: The vaccine that prevents cancer
46 sec · Captioned · The HPV vaccine prevents six cancer types, and is approved up to age 45.
Educational only — this video explains general report language and is not medical advice. Only your care team can say what a result means for you.
Choose how you want to understand this
The full explanation.
The simple version
The HPV vaccine helps prevent cancer before it ever starts. It protects against the human papillomavirus (HPV) types that cause most cervical cancers and several other cancers.
The vaccine works best when given early, before a person is ever exposed to HPV. That is why it is routinely recommended for children at age 11 or 12.
The HPV vaccine is one of the few vaccines that can help prevent cancer, and it has a strong safety record.
What the vaccine prevents
HPV is a very common virus. Some types can cause cancer over time. The HPV vaccine protects against the types that cause most HPV-related cancers.
The vaccine can help prevent:
- Cervical cancer
- Anal cancer
- Oropharyngeal (throat) cancer
- Penile cancer
- Vaginal cancer
- Vulvar cancer
It also protects against the HPV types that cause most genital warts. By preventing infection, the vaccine can prevent many of these cancers from ever developing.
Who should get it and when
Timing matters. The vaccine works best when given before a person is exposed to HPV.
Here are the general recommendations:
- Routine age: The vaccine is recommended at age 11 or 12. It can be started as early as age 9.
- Everyone through 26: Catch-up vaccination is recommended for people through age 26 who were not vaccinated earlier.
- Some adults 27 to 45: The vaccine is approved through age 45. It is not routine for this group, but some adults may benefit. This is a shared decision with your provider.
The younger a person is vaccinated, the more protection they usually get.
How many doses
The number of doses depends on age at the first shot.
- People who start before age 15 usually need two doses.
- People who start at age 15 or older usually need three doses.
Your healthcare provider can confirm the right schedule for you or your child.
Is it safe?
Yes. The HPV vaccine has been studied and monitored for safety for more than two decades.
In that time, no serious side effects have been linked to the vaccine. The most common problems are mild and short-lived, such as:
- Soreness at the injection site
- Redness or swelling where the shot was given
These are similar to the mild effects seen with many other vaccines. Health agencies continue to watch vaccine safety closely.
The vaccine does not replace screening
The HPV vaccine is powerful, but it does not protect against every cancer-causing HPV type.
For this reason, people who have been vaccinated should still get cervical cancer screening. Screening can find cell changes early, before they become cancer.
Think of the vaccine and screening as a team. Together, they offer the strongest protection against cervical cancer.
Cost and access
Most private insurance plans cover the HPV vaccine as a recommended preventive service, often with no extra cost to you.
Programs also exist to help children and some adults who are uninsured or cannot afford the vaccine. Your healthcare team can help you find out what is available.
If you have questions about whether the vaccine is right for you or your child, your provider is the best person to ask.
How the vaccine works
You do not need to know the science to benefit, but a simple explanation can help ease worry.
The HPV vaccine does not contain any live virus. Instead, it uses tiny particles that look like the outer shell of HPV. These particles cannot cause infection because they have no viral genetic material inside.
When your body sees these particles, it learns to recognize HPV and builds protection. Then, if you are ever exposed to the real virus, your body is ready to fight it off before it can cause an infection.
Because there is no live virus, the vaccine cannot give you HPV.
A rare chance to prevent cancer
Most cancers cannot be prevented with a shot. HPV-related cancers are different. This makes the HPV vaccine a special tool.
By preventing infection with high-risk HPV types, the vaccine can prevent many cancers from ever starting. Real-world data show that as more people are vaccinated, rates of cervical cancer and precancer go down.
Vaccinating widely also has a community benefit. When many people are protected, the virus spreads less, which helps protect others too.
If you are unsure whether you or your child are up to date, your healthcare team can check and answer any questions. Getting vaccinated on time gives the strongest, longest-lasting protection.
Words to know
Tap any term to see what it means.
Common questions
What does the HPV vaccine protect against?
The HPV vaccine protects against infection with HPV types that cause most cervical cancers and many anal, oropharyngeal (throat), penile, vaginal, and vulvar cancers. It also protects against the types that cause most genital warts.
At what age should someone get the HPV vaccine?
It is routinely recommended at age 11 or 12 and can be started at age 9. Catch-up vaccination is recommended through age 26 for people not vaccinated earlier. The vaccine works best when given before any exposure to HPV.
Can adults older than 26 get the vaccine?
The vaccine is approved through age 45. It is not routinely recommended for everyone 27 to 45, but some adults may benefit. This is a shared decision to make with your healthcare provider.
How many doses are needed?
People who start before age 15 usually get two doses. Those who start at age 15 or older usually get three doses. Your provider can confirm the right schedule for you.
Is the HPV vaccine safe?
Yes. After more than two decades of safety monitoring, no serious side effects have been linked to the vaccine. The most common problems are brief soreness or other mild symptoms at the injection site.
If I get the vaccine, do I still need cervical cancer screening?
Yes. The vaccine does not protect against every cancer-causing HPV type. People who have been vaccinated should still follow the same cervical cancer screening recommendations as those who were not vaccinated.
Questions to ask your doctor
Being prepared helps you get the most out of your appointments. Save or print these questions.
Tap a question to save it to your list (kept on this device).
Speak With Trained Specialists & Human Navigators
Cancer Explained provides educational guidance, but does not replace trained specialists, social workers, or your medical team.
Talk to a trained cancer information specialist
Free, confidential assistance from NCI Cancer Information Service via phone, chat, or email.
Contact your oncology team
Locate after-hours contact numbers, portal messages, or urgent triage phone lines.
Find a patient navigator
Get one-on-one help with appointments, logistics, translation, and care coordination.
Find a genetic counselor
Discuss inherited mutation risk, family history, and genetic testing options.
Find an oncology social worker
Access emotional counseling, family support groups, and mental health resources.
Find a financial navigator
Locate copay assistance foundations, grant programs, and lodging/travel support.
Find a clinical-trial specialist
Search matching studies and speak with NCI trial information specialists.
Get urgent help
Immediate emergency guidance for fever (>100.4°F during chemo), severe pain, or shortness of breath.
Help Us Improve This Guide
Did this explanation answer your question and help you determine your next step?
Know someone who needs this?
Plenty of people are looking for something like this and do not know where to start. If this would help a friend or someone you love, send it on — we have written an opening line so you do not have to stare at an empty message. You can change every word of it.
Your message is written and sent in your own email or messaging app — we never see who you send it to, and nothing is added to any list.
Knowledge Check
0 of 5 answered
This self-assessment checks understanding of educational content only. It is not medical advice.
Plain-language explanation of the published sources cited on this page. AI-assisted, source-checked, not clinician-reviewed.
Last updated: 2026-07-04Next planned review: 2027-07-04
How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status — Source checked. This page was written with AI assistance and checked line by line against the sources listed on it. That confirms the sources support what the page says. It is not a medical review, and it does not confirm the page is complete or right for your situation.
General education — varies by person. Answers genuinely differ between people. This page explains what commonly varies and points you to your care team for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source checked — This page was written with AI assistance and checked line by line against the sources listed on it. That confirms the sources support what the page says. It is not a medical review, and it does not confirm the page is complete or right for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
Read more about our editorial process, our use of AI, and our corrections policy.
Spotted a problem? Report an error — a factual mistake, broken or outdated source, confusing wording, or anything that seems unsafe. Please do not include names, medical record numbers, dates of birth, addresses, or other identifying medical information in your report.
After using this page, do you understand what to do next?
Anonymous — we only record the answer, never who gave it.
Related articles
Still have questions?
Educational answers, plain language
Free to print and share