Clinically reviewed by Dr. Ponlawat Pitsuwan, Physician, Doctor Bangkok. Last reviewed: July 2026
The HPV vaccine protects against the strains of human papillomavirus most likely to cause cervical, anal, and throat cancers, as well as genital warts. Gardasil 9 is the current standard and is available for both men and women. Adults who missed vaccination as teenagers can still benefit, and a short consultation helps you work out whether it makes sense for you.
If you are an adult who never got the HPV vaccine, or you got a dose years ago and then lost track of it, you are not alone. I see this all the time at Doctor Bangkok, particularly with expats who grew up before HPV vaccination was routine, or in countries where it was not offered at all. The question I hear most often is: is it too late? The honest answer is: probably not.
The vaccine does not treat an existing infection. But HPV has many strains, and Gardasil 9 protects against the ones you have not yet been exposed to. Even if you are sexually active, there is a good chance you have not encountered all nine strains it covers. Whether vaccination makes sense for you depends on your age, your history, and a few other factors. That is what this article is for.
What Does the HPV Vaccine Protect Against?
HPV is the most common sexually transmitted infection in the world. Most people who have ever had any sexual contact will carry it at some point, and most will never know because the body clears it without symptoms.
The problem is that certain strains do not clear easily. Strains 16 and 18 are responsible for most HPV-related cancers, including cervical, anal, and throat cancer. Strains 6 and 11 cause most cases of genital warts. Gardasil 9 covers all four of these, plus five additional high-risk strains.
The vaccine cannot protect against strains you already carry. But it gives your immune system a strong head start against the ones it has not encountered yet.
What Types of HPV Vaccine Are Available?
Three versions have existed over the years. The original vaccines covered two or four strains. Gardasil 9 covers nine and is now the global standard.
If you received an older version years ago, Gardasil 9 covers strains your previous vaccine did not. A brief consultation will help clarify what you have already had and whether additional doses make sense.
At Doctor Bangkok, Gardasil 9 is what we use. It is stored under proper cold-chain conditions, which matters more than most patients realise. A vaccine that has not been stored correctly may not work. It is worth asking about this at any clinic you visit.
HPV and Cervical Cancer in Thailand
Cervical cancer is the second most common cancer among women in Thailand, according to the Thai Ministry of Public Health. For expat women living here, that context matters. You are in a country where HPV-related disease is genuinely common, and where routine cervical screening has historically been less widespread than in many Western countries.
This does not mean Bangkok is uniquely dangerous. HPV is everywhere. But if you have been putting off your vaccination or your last Pap smear, there is no good reason to keep waiting.
Who Should Get the HPV Vaccine?
Adolescents and young adults
The ideal time to vaccinate is before any sexual activity begins. Most guidelines recommend starting the series between ages 9 and 12. If you are a parent with a child in that age range, the answer is simple: yes, get it done.
For anyone under 26 who has not yet been vaccinated, the recommendation is the same. Get vaccinated. You do not need a complex decision-making process. Just come in.
Adults aged 27 to 45
This is where it gets more nuanced. Vaccination in this group is not automatically recommended for everyone. You and your doctor look at your individual situation together.
The people in this group who tend to benefit most are those with new sexual partners, those who never completed a full vaccine course, and those whose immune system does not function as well as it should. If any of those apply to you, it is worth having a conversation rather than assuming the vaccine is not for you.
Men, including men who have sex with men
This is one of the biggest misconceptions I encounter. The HPV vaccine is not just for women. HPV causes penile cancer, anal cancer, and throat cancer in men, and Gardasil 9 is approved and recommended for males.
Men who have sex with men have a particularly strong case for vaccination. The protection that comes indirectly from female vaccination programmes does not extend to them. Bangkok has a large LGBTQ+ expat community, and I want to be direct: if you are a man who has sex with men and you have not been vaccinated, please come in.
Immunocompromised individuals
People with conditions that affect immune function, including those living with HIV, may not respond to the vaccine as strongly. That is not a reason to skip it. It is a reason to discuss timing with your doctor. Three doses are often recommended in this group regardless of age.
The Two-Dose vs. Three-Dose Schedule
If you start the HPV vaccine before your 15th birthday, two doses are enough, given six to twelve months apart. At 15 or older, you need three doses: the first, a second one to two months later, and a third six months after the first.
If you are moving between countries or travelling for medical care, you do not need to restart the series if there is a gap between doses. Bring your vaccination record, or ask us to issue one at your first visit. We can continue from wherever you left off.
The HPV Vaccine Does Not Replace Cervical Screening
Even Gardasil 9 does not cover every cancer-causing HPV strain. If you are a woman who has been vaccinated, you still need regular cervical screening.
A Pap smear checks for cell changes on the cervix before they become cancer. An HPV DNA test checks whether you are currently carrying a high-risk strain. The vaccine and the screening work together. Neither one alone gives you the full picture.
If you are not sure when your last Pap smear was, that is reason enough to book an appointment. Cervical screening is available at Doctor Bangkok alongside HPV vaccination.
What to Expect When You Come In
The consultation takes about fifteen minutes. We go through your vaccination history, your age, and any relevant health background. If Gardasil 9 is right for you, the injection itself takes seconds.
After the injection, we ask you to stay for fifteen to thirty minutes. Fainting after any injection is uncommon but real, and it is safer to wait. We document your dose in a vaccination record you can take with you.
Common side effects are mild: soreness at the injection site, and occasionally a low-grade fever for a day or two. These pass quickly. Serious reactions are rare. If you feel unwell after leaving, you can always call us.
Common Concerns About the HPV Vaccine
I hear a few questions repeatedly, and they deserve straight answers.
"I have already had sex, so it probably will not help me." Not necessarily. Gardasil 9 covers nine strains and most sexually active people have not encountered all of them. You can still gain real protection.
"I heard it is only for young people." The vaccine works best before first exposure, but adults up to 45 can still benefit depending on their situation. A ten-minute conversation is all it takes to find out.
"I had a bad reaction to another vaccine." This is worth discussing, not avoiding. Most vaccine reactions are mild and specific to the vaccine involved. Your doctor can go through your history and tell you whether there is any real concern.
Doctor Bangkok offers Gardasil 9 HPV vaccination for adults, men, women, and expats of all backgrounds. Our English-speaking physicians will go through your history and give you a clear recommendation. We are centrally located in Bangkok with BTS access and same-week appointments available. Visit doctorbangkok.co.th to book your consultation or walk-in vaccination appointment.
Frequently Asked Questions
I am over 30 and never had the HPV vaccine. Is it too late?
It is not automatically too late, but whether it makes sense depends on your situation. Adults aged 27 to 45 can still benefit, particularly if you have new sexual partners, never completed a full course, or have a condition affecting your immune system. Book a short consultation at Doctor Bangkok and we will give you a clear answer based on your actual history.
Do men need the HPV vaccine, or is it just for women?
Men need it too. HPV causes anal, penile, and throat cancers in men, and Gardasil 9 is approved for males. Men who have sex with men especially benefit because they do not get the same indirect protection that comes from widespread female vaccination programmes. This is not a women’s vaccine.
If I have already had sex, does the HPV vaccine still work?
Yes, it can. The vaccine cannot clear strains you already carry, but Gardasil 9 covers nine strains and most people have not encountered all of them. You can still gain real protection against the strains you have not yet been exposed to.
Do I still need cervical screening if I have had the HPV vaccine?
Yes, absolutely. The vaccine does not cover every cancer-causing HPV strain, so regular Pap smears or HPV DNA testing are still needed even after full vaccination. The combination of both gives you the strongest protection against cervical cancer.
How many doses do I need, and can I start here and finish abroad?
Under 15, you need two doses. At 15 or older, you need three. If you start at Doctor Bangkok and continue elsewhere, you do not need to restart the series. We will give you a vaccination record at each visit so any clinic abroad can pick up where we left off.
What are the side effects of the HPV vaccine?
Most people get mild soreness at the injection site, and some have a low-grade fever for a day or two. Serious reactions are rare. We ask all patients to stay at the clinic for fifteen to thirty minutes after the injection as a standard precaution.
Which HPV vaccine does Doctor Bangkok use?
We use Gardasil 9, the current global standard. It covers nine HPV strains, including the two most likely to cause cancer and the two that cause most genital warts. It supersedes older formulations, which covered fewer strains.
Dr. Ponlawat Pitsuwan
Physician, Doctor Bangkok
a private medical clinic in central Bangkok. He sees expats, residents, and medical tourists for vaccinations, sexual health consultations, and general medical care, including HPV vaccination and cervical screening. His focus is straightforward, evidence-based care delivered in plain language.
Dr. Ponlawat Pitsuwan is a physician at Doctor Bangkok, a private clinic in central Bangkok. He sees expats, residents, and medical tourists for general medicine, wellness consultations, and IV therapy. His focus is straightforward, evidence-based care delivered in plain language.
