When to get the HPV vaccine
When to get the HPV vaccine: the CDC recommends age 11–12 in the US (it can start at 9), with catch-up vaccination to age 26, and the UK gives 1 dose at age 12–13 (UKHSA). It prevents most cervical cancers (CDC), and it sits among the health checks for women that come with a set age.
If you're working out the timing for your child or for yourself, the reassuring part is that the schedule is clear and a missed date can usually be made up. The human papillomavirus (HPV) vaccine is a shot, called the HPV jab in the UK, that protects against a very common virus. How many doses you need depends on the age at the first one: 2 for US children who start at 9–14, 3 for anyone who starts at 15–26 or has a weakened immune system (CDC, 2025), and usually 1 in the UK for anyone under 25 (NHS, 2025).
What is the HPV vaccine?
The HPV vaccine shot is a vaccine for the HPV virus, or more exactly for the types of it that cause disease. One version is in use today: the Gardasil 9 HPV vaccine is the only one distributed in the US, and it protects against 9 HPV types (CDC, 2025). It is also the only HPV vaccine given in the UK (NHS, 2025), so a family in either country is being offered the same thing.
Its job is prevention, which is why it is given so early. It appears on the CDC's adolescent immunization schedule in the US and on the UKHSA routine immunization schedule in the UK, alongside the other vaccines of the early teen years. For your child, that makes it one more ordinary appointment.
Does the HPV vaccine prevent cervical cancer?
Yes, for most cases. The CDC states that the HPV vaccine prevents most cervical cancers, and that finding is the reason it is on the schedule. The vaccine targets particular HPV types, not every one, which is why the word is most and not all.
HPV itself is common, and that is worth knowing before anything else. More than 42 million Americans have HPV types that cause disease, and about 13 million are newly infected each year (CDC, 2025). A virus that widespread is an ordinary part of life, which is why the vaccine is offered to every child at a set age.
The cancer count is a separate and much smaller figure. HPV causes about 36,000 cancers a year in the US, counted across men and women and across several parts of the body, cervical cancer among them (CDC, 2025). That is the number the HPV vaccine in cervical cancer prevention, and in the other HPV cancers, is aimed at.
If 11 or 12 feels young to you, the reasoning is about timing. The CDC notes that the benefit of vaccination is smaller once more people have been exposed to HPV, so the schedule places the shot well ahead of that. Starting early also means fewer doses on the US schedule.
Protection has held up over time as well. The National Cancer Institute reports that it has lasted more than a decade against the targeted HPV types (NCI, 2025).
For the adult years, the Pap smear, known as cervical screening or a smear test in the UK, is a separate check with a page of its own.
When to get the HPV vaccine, and how many doses?
The age at the first dose sets the number of doses, and the two countries count differently. In the US, children who start at 9–14 have 2 doses, given 6–12 months apart, and anyone who starts at 15–26 has 3 doses over 6 months (CDC, 2025). In the UK, 1 dose is usual under age 25, and eligible adults aged 25–45 usually have 2 doses, 6 months to 2 years apart (NHS, 2025).
If you or your child has a weakened immune system, the pattern is 3 doses in both countries: at ages 9–26 in the US (CDC, 2025), and spread over 12 months in the UK (NHS, 2025).
A routine date that has passed can be made up. Catch-up vaccination runs to age 26 in the US; in the UK, girls aged 24 and under and boys born after 1 September 2006 are offered the jab up to age 25 (NHS, 2025). After that, the CDC does not recommend it for everyone, and unvaccinated adults aged 27–45 may decide with their doctor.
The age on the schedule is the same for every child, wherever she is in her development. If your daughter's body is changing sooner than you expected, our page on early puberty is written for that.
It's worth noting the date of the first dose in your child's vaccination record, since every later date is counted from it.
Is the HPV vaccine safe, and what have the studies not shown?
Safety is usually the first thing parents ask about, and the evidence here is long. The National Cancer Institute reports that more than two decades of safety monitoring have not shown serious side effects (NCI, 2025).
What the monitoring does show is mild for most people: arm soreness, fever, dizziness, headache or nausea (CDC, 2025). Fainting is more common in adolescents than in adults, so the CDC suggests sitting or lying down for 15 minutes after the shot. It can help to tell your child about this beforehand, so that the wait feels like part of the plan.
When to see a doctor: if your child's symptoms after the shot are getting worse instead of easing, it's worth a call to your pediatrician (your GP in the UK). The same goes if she reacted badly to an earlier dose, because a life-threatening allergic reaction to a previous dose means the next one is not given (CDC, 2025).
The studies have limits worth stating plainly. 'More than a decade' describes how long protection has been followed so far, not a point at which it stops. 'Most cervical cancers' is not all of them. And the infection and cancer counts on this page are US figures that describe a whole population, so they can't tell you about one child.
HPV vaccine by life stage
| Stage | Figure | Why | Read more |
|---|---|---|---|
| Childhood | Can start at 9 | The series can begin before the routine age, which leaves room to plan around other visits. | Health checks |
| Puberty | 11–12 routine; UK 1 dose at 12–13 | This is the routine window on both the US and UK schedules. | Health checks |
| Reproductive years | Catch-up to 26; UK offer to 25 | Young adults who missed the routine window can still start or finish the series. | Health checks |
| Perimenopause | 27–45: decide with your doctor | If you're unvaccinated and 45 or under, the CDC leaves the choice to you and your doctor; the benefit is smaller at this age. | Health checks |
| Menopause | No routine dose | CDC guidance on adult vaccination runs to 45, so there is usually nothing to book at this stage. | Health checks |
| Postmenopause | None scheduled | Many women at this stage read this page for a daughter or granddaughter, whose routine age is 11–12 (UK 12–13). | Health checks |
Guidance by country
Facts
Common questions
When to get the HPV vaccine?
At 11–12 in the US, or 12–13 in the UK. If that age has already passed, the next useful date on the US schedule is the 15th birthday: a first dose before it means 2 doses in total, and a first dose after it means 3. Your pediatrician or GP can look at your child's record with you and say which dose, if any, comes next.
When did the HPV vaccine come out?
Long enough ago to have more than two decades of safety monitoring behind it (NCI, 2025). The vaccine offered today is not the first version: an earlier one covered 4 HPV types and another covered 2, and both were licensed before the current 9-type vaccine (CDC, 2025). If you were vaccinated some years ago, your record will show which version you had.
Why is the HPV vaccine not recommended after 26?
After 26, more people have already been exposed to HPV, so the CDC stops short of recommending it for everyone. If you're 27–45 and unvaccinated, it is still open to you through what the CDC calls shared clinical decision-making: a conversation with your doctor about your own circumstances. In the UK, men aged 45 and under who have sex with men and attend a sexual health or HIV clinic are also offered it (NHS, 2025).
Is the HPV vaccine safe?
The long-term monitoring is reassuring, and a small number of people are advised against it. The shot is not given to anyone with a life-threatening allergy to one of its ingredients, and a yeast allergy is worth mentioning before the appointment (CDC, 2025). If your child has fainted with shots before, it helps to tell the person giving it so she can lie down.
How many HPV vaccine doses do you need?
Between 1 and 3, depending on your country, the age at the first dose and immune health. The practical step is to check the vaccination record for the number of doses and the date of the first, since that date decides the rest. In the US your pediatrician or primary care provider can do this with you; in the UK, your GP surgery can.
Does the HPV vaccine prevent cancer?
It prevents most cervical cancers, according to the CDC. HPV also causes vaginal, vulvar, penile, anal and throat cancers, which is why the yearly US count of HPV cancers includes men as well as women (CDC, 2025). If you have sons, that list explains why the vaccine is offered to them too; in the UK, boys born after 1 September 2006 are eligible.
Next steps
A good place to start is your child's vaccination record, or your own: the number of doses and the date of the first tell your pediatrician or primary care provider (your GP in the UK) most of what they need. If you're in the catch-up years, or 27–45 and weighing it up for yourself, it can help to bring your questions written down. The US and the UK give the same vaccine on different schedules, a fair reminder that this is not one size fits all; the timing that fits you or your child is yours to decide.
See a doctor promptly if you have
- symptoms that are getting worse
Sources
The guidelines and studies this page draws on.
- HPV Vaccine Recommendations / About HPV Vaccine, CDC (2025)
- HPV vaccine (NHS vaccinations), NHS (2025)
- About HPV, CDC (2025)
- HPV Vaccines fact sheet, National Cancer Institute (NIH) (2025)