Yes, boys should get the HPV vaccine. The CDC recommends it routinely at ages 11–12, and it can start as early as age 9. Kids who start before their 15th birthday need two doses; those starting at 15 or older need three. Given on time, it prevents most HPV-caused cancers in males.
Key figures
- Routine age
- 11–12
- can start as early as 9
- If started before 15
- 2 doses
- 6–12 months apart
- If started at 15–26
- 3 doses
- weaker immune response after 15
- Catch-up
- through 26
- shared decision-making to 45
| Item | Value |
|---|---|
| Routine age | 11–12: can start as early as 9 |
| If started before 15 | 2 doses: 6–12 months apart |
| If started at 15–26 | 3 doses: weaker immune response after 15 |
| Catch-up | through 26: shared decision-making to 45 |
Why boys need the HPV vaccine
It's easy to assume HPV is a "women's" problem because cervical cancer dominated the early messaging. It isn't. HPV is the most common sexually transmitted infection, and it spreads through vaginal, anal, and oral sex: and even close skin-to-skin contact of the genital area, since penetration isn't required CDC. Boys are exposed just as readily as girls.
The virus causes two different problems people often blur together. Low-risk types (6 and 11) cause genital warts: soft, flesh-colored growths on or around the penis, scrotum, or anus. High-risk types (16, 18, and others) can silently drive cancer years later. The warts types don't cause cancer, and the cancer types don't cause warts, they're separate threats from the same family of virus CDC STI Guidelines.
In males, HPV's cancer toll lands on the throat, anus, and penis. It causes about 70% of throat (oropharyngeal) cancers, cancers at the base of the tongue and tonsils, and oropharyngeal cancer has now overtaken cervical as the most common HPV-related cancer in the US NCI. HPV also causes over 90% of anal cancers and a share of penile cancers. Because there's no routine HPV test for men, these often aren't caught early, which is exactly why prevention before exposure matters so much.
The recommended ages and dose schedule
The routine recommendation is to vaccinate boys (and girls) at ages 11–12, and clinicians can start as early as age 9 CDC Pink Book. There's a biological reason for the early timing: the immune response to the vaccine is strongest in this younger age group, and the goal is to build protection before any sexual contact and any possible exposure to the virus.
The number of doses depends on the age at the first shot:
- Started before the 15th birthday: two doses, with the second given several months after the first.
- Started at age 15 or older: three doses over a six-month period.
- A child with certain weakened immune systems may need three doses even if they start younger, your clinician will advise.
The vaccine used in the US today is Gardasil 9, which protects against nine HPV types: 6, 11, 16, 18, 31, 33, 45, 52, and 58. Types 16 and 18 alone drive about 66% of cervical cancers, and the five extra high-risk types add roughly another 15%; types 6 and 11 cause more than 90% of genital warts American Cancer Society. Since 2016, Gardasil 9 has been the only HPV vaccine distributed here, it covers more cancer-causing types than the older quadrivalent Gardasil (four types) or bivalent Cervarix (two types).
How well it works in boys
Given at the recommended ages, the HPV vaccine can prevent more than 90% of HPV-caused cancers, and Gardasil 9 is about 98% effective against the precancers caused by HPV 16 and 18. For boys specifically, that translates into protection against the throat, anal, and penile cancers tied to those high-risk types, plus the genital warts caused by types 6 and 11.
One thing worth being clear-eyed about: the vaccine is prevention, not treatment. Gardasil 9 protects against future infection with the types in it, but it won't clear an infection or warts someone already has. That's the single biggest reason the early, pre-exposure timing carries so much weight, the protection is strongest before any contact with the virus.
Is it safe?
The HPV vaccine has one of the longest and most studied safety records of any vaccine in routine use. The most common reactions are exactly what you'd expect from any shot: a sore arm, redness or swelling at the injection site, and sometimes a mild headache or low-grade fever that passes on its own.
Fainting after the shot is more common in adolescents than serious reactions are, which is why clinics often have teens sit for a short observation period afterward. Serious allergic reactions are rare, and there's no credible evidence linking the HPV vaccine to infertility or other long-term harms. For a parent weighing risk against benefit, the math is straightforward: a few minutes of a sore arm against protection from several cancers.
Catch-up vaccination through 26, and shared decision-making to 45
If your son missed the routine window, it's not too late. Catch-up vaccination is recommended for everyone through age 26 who wasn't adequately vaccinated earlier. Anyone starting at age 15 or older gets the three-dose schedule.
Between ages 27 and 45, vaccination isn't routinely recommended for everyone, but it can still make sense for some adults based on their likelihood of new exposure. That's a shared-decision-making conversation: someone in this range who's newly single or facing new partners may benefit, while someone in a long-term mutually monogamous relationship may gain little. An adult already exposed to some HPV types can still benefit from protection against the types they haven't encountered.
Cost and where to get it
Most private insurance plans cover the HPV vaccine with no out-of-pocket cost when given at recommended ages, because it's a recommended preventive service. For children and teens who are uninsured or underinsured, the federal Vaccines for Children (VFC) program provides HPV vaccine at no cost through participating providers.
You can get the vaccine at a pediatrician's or family doctor's office, many pharmacies, and community and college health clinics. If your son is sexually active and you're wondering whether HPV itself can be checked, the short answer for males is no, see HPV STD testing for why there's no routine HPV test for men. If you have broader STI questions or want to confirm timing for other infections, you can get tested and read when to test after exposure.
When to talk to a clinician
Bring up the HPV vaccine at your son's next well-child or annual visit: ideally around ages 9 to 12, but at any point through 26 if he's behind. Ask which dose schedule applies based on his age at the first shot, and whether any health condition changes the recommendation.
For older teens and young adults, it's also worth pairing the vaccine conversation with a general check-in on sexual health. The vaccine prevents future HPV but doesn't address an existing infection, and vaccinated people who have a cervix still need cervical screening. If a partner has been diagnosed, our guide on telling a partner about HPV can help, and HPV testing explains what testing can and can't do.
Keep exploring on EasySTD: confidential testing by state, STD vaccines and HPV testing.