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Published on: 10/1/2026
The HPV vaccine is typically given as a two-dose series for people who start at ages 9 through 14, with the second dose spaced 6 to 12 months after the first, while those starting at age 15 or older (or who are immunocompromised) usually need three doses on a 0, 1 to 2 month, and 6 month schedule. Timing details matter, because a second dose given sooner than 5 months after the first generally means an extra dose is required, and interrupted series can be resumed without restarting. See below for the full dose spacing rules, catch-up guidance, and factors that change the recommended number of shots.
If you are unsure where you are in the series or you are noticing symptoms such as genital warts, unusual bleeding, or abnormal discharge, getting clarity quickly can help you decide what to do next. A free, instant, online symptom check can help you organize what you are experiencing and point you toward the right type of care, so you are not left guessing between appointments.
Last reviewed for medical accuracy: 10/01/2025
Human papillomavirus (HPV) is a common infection linked to several cancers and genital warts. Vaccination is the most effective way to protect yourself and your loved ones. This guide explains how often to get HPV vaccine, how doses are spaced, and who should receive them, based on the latest recommendations from credible health authorities.
• HPV affects nearly everyone at some point in life.
• Certain strains cause cervical, anal, throat, and other cancers.
• Vaccination cuts the risk of these cancers by up to 90%.
Getting vaccinated not only protects you but also helps reduce the spread of HPV in your community.
The timing and number of doses depend primarily on age at first vaccination and immune status.
• This schedule provides strong, long-lasting protection for younger adolescents.
• If the second dose is given less than 5 months after the first, a third dose is recommended.
• Immunocompromised individuals (e.g., HIV infection, organ transplant) should follow a 3-dose schedule regardless of age at initiation.
• Completing all three doses is crucial to achieve full protection.
Clear spacing helps the immune system build a stronger response:
Missing a dose? Don’t restart the series. Simply schedule the next available appointment. The spacing can be adjusted, but doses must be at least four weeks apart.
HPV vaccines have been studied globally in millions of people. Common, mild side effects include:
Serious reactions are extremely rare. The benefits far outweigh potential risks.
• If you start before age 15, you’ll get 2 doses spaced 6–12 months apart.
• If you start at 15 or older (or are immunocompromised), you’ll get 3 doses at 0, 1–2, and 6 months.
Currently, no routine booster dose is recommended once the initial series is complete. Research suggests long-term protection exceeds 10 years, with no sign of waning.
Yes. If your first dose was one HPV vaccine and the next dose is another brand, the series remains effective. There’s no need to restart.
Resume as soon as possible. There’s no maximum interval; just don’t start over.
If you’re ever unsure about symptoms—like unexplained genital sores, pain, or unusual bleeding—you might consider a free, online symptom check, using the doctor approved Ubie Symptom Checker—https://ubiehealth.com/. It’s a quick way to see if you need professional care.
Understanding how often to get HPV vaccine and following the correct schedule is vital for effective protection against HPV-related diseases. Vaccination is safe, well-studied, and recommended for most children, adolescents, and young adults.
Always speak to a doctor about anything that could be life-threatening or serious. Your healthcare provider can offer personalized advice based on your health history and needs. Staying informed and completing the HPV vaccine series on time offers you the best defense against HPV-related cancers and conditions.
(References)
* Sanderson K. Vaccination: A durable design. Nature. 2012 Aug 30;488(7413):S7. doi: 10.1038/488S7a. PMID: 22932439.
* Three doses of HPV vaccine still recommended, for now. BMJ. 2013 Apr 30;346:f2797. doi: 10.1136/bmj.f2797. Epub 2013 Apr 30. PMID: 23637199.
* USA missing opportunities for HPV vaccination. Lancet Infect Dis. 2013 Sep;13(9):725. doi: 10.1016/S1473-3099(13)70230-5. PMID: 23969206.
* Fessler B. [Two-dose vaccination schedule for younger girls]. Med Monatsschr Pharm. 2014 May;37(5):189-90. PMID: 24908937.
* Brotherton JM, Winch K. The effect of making a 'third dose assumption' on HPV coverage estimates. Aust N Z J Public Health. 2015 Apr;39(2):193-4. doi: 10.1111/1753-6405.12320. Epub 2015 Jan 5. PMID: 25559458.
* Petrosky E, Bocchini JA Jr, Hariri S, Chesson H, Curtis CR, Saraiya M, Unger ER, Markowitz LE, Centers for Disease Control and Prevention (CDC). Use of 9-valent human papillomavirus (HPV) vaccine: updated HPV vaccination recommendations of the advisory committee on immunization practices. MMWR Morb Mortal Wkly Rep. 2015 Mar 27;64(11):300-4. PMID: 25811679; PMCID: PMC4584883.
* Soon R, Dela Cruz MR, Tsark JU, Chen JJ, Braun KL. A Survey of Physicians' Attitudes and Practices about the Human Papillomavirus (HPV) Vaccine in Hawai'i. Hawaii J Med Public Health. 2015 Jul;74(7):234-41. PMID: 26225269; PMCID: PMC4507363.
* Campos-Outcalt D. Immunization update: This year's changes. J Fam Pract. 2016 Mar;65(3):198-200. PMID: 27158692.
* Moreno MA. Human Papillomavirus Vaccination. JAMA Pediatr. 2019 Feb 1;173(2):204. doi: 10.1001/jamapediatrics.2018.4546. PMID: 30715165.
* Meites E, Szilagyi PG, Chesson HW, Unger ER, Romero JR, Markowitz LE. Human Papillomavirus Vaccination for Adults: Updated Recommendations of the Advisory Committee on Immunization Practices. MMWR Morb Mortal Wkly Rep. 2019 Aug 16;68(32):698-702. doi: 10.15585/mmwr.mm6832a3. Epub 2019 Aug 16. PMID: 31415491; PMCID: PMC6818701.
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