To have, or not to have: the HPV jab when you’re older (and sexually active)

To be, or not to be” is Shakespeare’s famous line about existence and uncertainty.

But the question we kept getting after our recent article The HPV Gap is more modern — and far more practical:

To have, or not to have… the HPV jab.
Especially if you’re older. Especially if you’ve been sexually active. Especially if you feel like you “missed the window”.

Here’s the honest answer: there’s rarely “harm” in having the vaccine, but there is also no guarantee it will protect you in the way people hope when they’re already older and may have been exposed to HPV.

That’s not scaremongering. That’s just how HPV — and the vaccine — actually work.

HPV: the virus most people get, and most people clear

HPV (human papillomavirus) is common. So common that most sexually active people will encounter it at some point, often with no symptoms and no idea it happened.

For most people, the immune system does what it’s built to do: it clears the virus naturally, usually within a year or two.

That’s the part we all wish the story ended on.

But in a minority of cases, HPV doesn’t clear. It persists — sometimes quietly for years — and persistent infection with high-risk HPV types can drive cellular changes that can, over time, become cancer.

This matters to us at the Throat Cancer Foundation because HPV is linked to cancers in the mouth and throat as well as elsewhere, and the NHS explicitly includes mouth cancer in its list of cancers associated with HPV.

So the real question isn’t “Is HPV scary?”
It’s: Am I still at risk, and would vaccination meaningfully reduce that risk?

What the HPV vaccine does (and what it doesn’t)

Let’s be blunt:

  • The HPV vaccine is designed to prevent new HPV infections.
  • It does not treat existing HPV infection.
  • It does not “flush out” HPV you already carry.

That’s why the vaccine is offered routinely to young people: it’s most effective before exposure, i.e., before sexual contact begins.

By adulthood, many people will already have been exposed to one or more HPV types — which is exactly why vaccination is less effective overall when started later.

But “less effective” is not the same as “pointless”.

So why do people still get it when they’re older?

Because HPV isn’t one single virus type.

The commonly used vaccine in the UK (Gardasil 9) targets multiple HPV types. Even if you’ve been exposed to one type, you may not have been exposed to others — so vaccination can still offer some protection against types you haven’t yet encountered.

That’s why some health systems treat adult HPV vaccination as a personal risk/benefit decision rather than a universal recommendation for everyone in that age group.

So yes: an older, sexually active adult can still choose to get the jab, and there may be a genuine benefit — but it’s not the same level of certainty you get when vaccinating a 12–13-year-old.

“No harm in getting it” — true, but incomplete

When people say “there’s no harm in getting it”, they usually mean:

  • the vaccine has a well-established safety record, and
  • getting it won’t increase your risk of HPV-related cancer.

That’s broadly fair.

But here’s what that phrase often hides:

1) It may not protect you from what you’re most worried about

If your worry is, “What if I already have HPV?”, the vaccine won’t treat it.

2) Protection isn’t guaranteed

Even at younger ages, no vaccine is magic. In older ages, with likely prior exposure, protection becomes more variable — because you may already have encountered some of the HPV types covered.

So: low downside, possible upside — but don’t buy false certainty.

Who can get the HPV vaccine on the NHS (UK), and who may need to go private?

In the UK, the HPV vaccine is routinely offered to children aged 12–13, and there are catch-up routes for certain younger groups.

It’s also available on the NHS to some higher-risk groups — for example, men who have sex with men up to age 45 via sexual health/HIV clinics, and other groups on a risk basis.

If you’re outside NHS eligibility, you may still be able to get it privately (often with clinics offering it up to age 45, because that’s where licensing evidence commonly sits).

If you’re unsure, don’t guess — ask your GP or a sexual health clinic what routes apply to you.

A more useful way to decide: ask the right questions

Instead of “Should I get it?”, try these:

  • Am I likely to have new sexual partners in future? (Future exposure risk matters more than past exposure.)
  • Am I immunocompromised or living with a condition/medication that affects immunity? (This can change risk and clinical advice.)
  • Am I doing this for prevention — or for reassurance? (If it’s reassurance, remember: it won’t clear existing HPV.)
  • Can I access it on the NHS, or would it be private? (Practicality matters.)

This is exactly the kind of conversation that’s worth having with a clinician who can weigh your situation properly.

The uncomfortable truth for older adults: your best protection is still vigilance

If you’re older and weren’t vaccinated at school, you can’t change that. You can choose vaccination now (if eligible or privately), but your strongest, most reliable protection is still:

  • knowing the signs, and
  • acting early when something doesn’t settle.

That means no tolerance for months of “probably nothing” if you’ve got persistent symptoms — especially things like a lump in the neck, persistent sore throat, pain swallowing, unexplained voice changes, mouth ulcers that don’t heal, or red/white patches in the mouth/throat.

Early diagnosis doesn’t just save lives. It often means simpler treatment and less life-altering fallout.

To have, or not to have?

If you want the straight version:

  • Yes, an older sexually active person can get the HPV vaccine, and there may be some benefit.
  • No, it’s not a guarantee, especially if you’ve already been exposed.
  • And no, it doesn’t treat existing HPV infection.

So if you choose to have it, do it for the right reason: risk reduction, not certainty.

And whatever you decide: stay alert, get persistent symptoms checked, and push until you get answers.

I hope this article has helped you recognise one the causes of throat cancer, HPV and encouraged you to look out for the signs of throat cancer — and given you the confidence to speak up. It’s your body, and you know when something isn’t right.

That’s why I’m proud of our Know the Signs campaign. It’s about two things that change outcomes: helping more people avoid throat cancer where possible, and making sure those who do develop it are diagnosed earlier, when treatment is often less invasive and recovery can be kinder.

Please support the campaign if you can — it’s how we help others avoid this brutal disease and the life-changing side effects it can leave behind.

Find out more and support here:
https://www.justgiving.com/campaign/throatcancerfoundation

Thank you,

Gordon Dow, Trustee

Throat Cancer Foundation

#ThroatCancer #BeThroatCancerAware #HPV #HumanPapillomavirus #HeadAndNeckCancer #IfInDoubtGetCheckedOut #KnowTheSigns #LifeAfterLary

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