Sexual Health Vaccines: HPV and Hepatitis A and B
Explore vaccines relevant to sexual health, including HPV, hepatitis A and B, and what to discuss with a healthcare professional.

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In an era where sexual relationships are becoming more open, 'prevention' has become a topic that needs to be discussed openly and is no longer a shameful subject. Good sexual health is not just about 'using condoms' — there is another effective long-term tool to protect us, which is 'sexual vaccines'. Many people think vaccines are only needed when you're young, like the measles, rubella, or polio vaccines — but in reality, vaccines play a very important role in preventing sexually transmitted infections, especially those that often have no initial symptoms but cause serious long-term consequences such as cervical cancer, viral hepatitis, or genital warts. This article will help you understand what sexual vaccines are, how many types there are, when you should get vaccinated, and what diseases they prevent — because knowing beforehand is prevention before it's too late.
What are sexual vaccines?
'Sexual vaccines' are vaccines used to prevent infectious diseases that can be transmitted through sexual contact — such as the hepatitis B virus (HBV), hepatitis A virus (HAV), and the human papillomavirus (HPV), which causes cervical cancer and genital warts. Receiving these vaccines helps the body build immunity before coming into contact with the actual pathogen, thereby significantly reducing the risk of disease — even some types provide long-term protection for decades.
Simply put, sexual vaccines are a protective layer for the body, helping to reduce the risk of dangerous diseases that can arise from sexual activity.
Why is it important to get vaccinated?
- Because some diseases have no symptoms but silently destroy the body — for example, hepatitis B can lead to liver cancer without the patient being aware
- Because some diseases have no complete cure — such as HPV: although symptoms can be treated, the virus remains in the body
- Because vaccination is safe and provides long-term protection — just a few doses can protect against disease for many years
- Because it is a way to protect yourself and the people you love — prevention early on is always better than regret later, regardless of your gender or type of relationship
What are the important types of sexual vaccines?

1) HPV Vaccine (Human Papillomavirus)
| Information | Details |
|---|---|
| Diseases prevented | Cervical cancer, anal cancer, mouth-throat cancer, genital warts |
| Importance | Spreads very easily even when using condoms — the vaccine is the best prevention method |
| Recommended vaccination time | 9–26 years old (best before first sexual contact) / Older adults can still get vaccinated |
| Number of doses | Under 15 years old: 2 doses / 15 years old and above: 3 doses (months 0, 2, 6) |
| Reference price | 2,000–4,000 Baht per dose (approximately 1,400,000–2,800,000 VND) |
2) Hepatitis B Vaccine
| Information | Details |
|---|---|
| Diseases prevented | Chronic hepatitis, liver cirrhosis, liver cancer caused by HBV |
| Recommended vaccination time | Newborns get it for free / Adults should get tested for immunity first, if not immune, get vaccinated immediately |
| Number of doses | 3 doses (months 0, 1, 6) |
| Key features | Immunity lasts 10–20 years |
3) Hepatitis A Vaccine
| Information | Details |
|---|---|
| Diseases prevented | Hepatitis A — spreads through food, drinks, or oral-anal contact |
| Recommended vaccination time | High-risk groups (such as MSM), people traveling to endemic areas, children and adults can all get vaccinated |
| Number of doses | 2 doses, 6 months apart |
| Reference price | 1,000–2,000 Baht per dose |
4) Combined Hepatitis A–B Vaccine (Twinrix)
| Information | Details |
|---|---|
| Key features | Prevents both HAV and HBV in the same course of treatment |
| Number of doses | 3 doses (according to the schedule of the hepatitis B vaccine) |
| Suitable for | Those who want convenience — one course of vaccination prevents both hepatitis A and B |
5) Herpes Vaccine (Genital Herpes) — Under research
| Information | Details |
|---|---|
| Current status | No practical vaccine available yet, but research is ongoing in the US and Europe |
| Diseases prevented | HSV-1 and HSV-2 (oral herpes + genital herpes) |
| Current options | Use condoms, avoid direct contact when there are wounds |
Who should get vaccinated?

- People who have had or are currently having sexual relationships (whether male, female, or diverse gender)
- Couples preparing for marriage or planning to have children
- Men who have sex with men (MSM)
- People using hormone therapy for gender confirmation
- People working in healthcare or at risk of blood exposure
- People unsure if they have been vaccinated before
Do you need to check your health after vaccination?
The answer is Yes — because vaccines cannot prevent all diseases, such as gonorrhea, chlamydia, syphilis, or HIV. Therefore, regular sexual health check-ups are still very important, and should be done every 6–12 months — especially for people with multiple partners or high-risk behaviors.
Things to know before getting vaccinated
- It is advisable to check your health before vaccination — especially testing for immunity to hepatitis B
- Inform your doctor if you are pregnant, breastfeeding, or have a history of allergy to any vaccine
- If you need to get multiple vaccines at the same time, follow your doctor's instructions on spacing them out
- Mild side effects such as arm pain, slight fever, or small swelling may occur after vaccination — usually resolves within 1–2 days
Comprehensive sexual health care

Getting vaccinated against sexual diseases is just 'one of the prevention tools' that enhances safety — but it cannot completely replace the use of condoms, regular health check-ups, or open communication with your partner. Good sexual health comes from comprehensive care, including:
- Use condoms every time you have sex
- Have regular sexual health check-ups
- Get fully vaccinated according to the schedule
- Have sex with respect and safety in mind
In summary: Sexual vaccines prevent more than you think
Many people may think that 'getting vaccinated as a child is enough' — but in reality, vaccines for adults, especially sexual vaccines, are indispensable. Because they help prevent many dangerous diseases such as liver cancer, cervical cancer, and genital warts. The earlier you get vaccinated, the higher the protective effect — because some vaccines create the best immunity before the body has ever been exposed to the pathogen.
Don't wait until it's too late 💉 because good sexual health
starts with 'prevention today'
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