Where and how to test for STIs

Last updated July 2026

Testing for STIs is the only way to know your sexual-health status for sure, because many sexually transmitted infections show no symptoms. Regular testing helps you find and treat them early, before complications or passing them to others. Testing today is simple, convenient, and confidential, with blood tests, urine tests, and samples from the relevant area. This page explains it fully — the different test methods, when infections show, where to test, the process, confidentiality, and how often to test — so you can look after your sexual health with confidence.

Why test for STIs

Testing for STIs matters because many infections show no symptoms.

Many infections have no symptoms

Many sexually transmitted infections have no symptoms, especially in women and in some sites of infection, so a person may not know they are infected and may pass it on unknowingly.

The sooner you know, the better

Finding an STI early lets you start treatment sooner, preventing complications such as fertility problems, and lowers the chance of passing it to a partner, so testing is part of good health care.

Testing is looking after yourself

Testing helps you know your status and find and treat infections early, reducing the chance of complications and transmission. See the overview of STIs at sexually transmitted infections (STIs).

How STIs are tested

There are several ways to test for STIs, depending on the infection.

The different test methods

MethodSample usedDetects
Blood testBloodHIV, syphilis, hepatitis B and C, herpes
Urine testUrineGonorrhoea and chlamydia
Swab from the relevant areaGenitals, rectum, throat, or a soreGonorrhoea, herpes, and HPV screening

A provider chooses the right method

A doctor or staff member chooses the test method based on your risk and symptoms, and sometimes several tests are done together for full coverage.

Testing windows

After exposure, each infection takes a different amount of time before it can be detected.

When it starts to show (approximate)

InfectionWhen it starts to show
HIVAbout 2 to 6 weeks, confirmed at 3 months
SyphilisAbout 3 to 6 weeks
Gonorrhoea and chlamydiaAbout 1 to 2 weeks
Hepatitis B and CWeeks to a few months

These are approximate

These times are approximate and can vary by the type of test, and testing too early may mean a repeat test is needed, so it is best to ask a provider about the right timing.

Where to test

STI testing is available in many places, both public and private.

Where to test

  • hospitals and clinics, both public and private
  • sexual-health clinics and community clinics that provide friendly services
  • services that work with key populations

Easy to find and book

You can find clinics that test for STIs and HIV, and book an appointment conveniently, at Love2Test, which helps you reach friendly and confidential services.

Choose a place you are comfortable with

Different services have different atmospheres and offerings, and choosing a place where you feel comfortable and welcome, such as a community clinic that understands key populations, makes testing a good experience.

The testing process

STI testing is a simple and quick process.

What happens

Generally, a staff member talks about your risk, takes the samples needed — such as blood, urine, or a swab — and sends them for testing. Some tests give quick results, while others take a few days.

No need to worry

Most tests are painless or only slightly uncomfortable, and staff are ready to give advice both before and after the test, and thinking of it as normal health care helps you feel more at ease.

You can ask anything

Testing is a good chance to ask questions about sexual health, whether about prevention, vaccines, or PrEP, and staff are ready to give information without judgement, so you get complete care.

Anonymous testing and confidentiality

STI testing is private and protected.

Confidentiality is your right

Your test results and status are confidential, and providers have a duty to keep them private, so you can test with peace of mind.

Anonymous testing services

Thailand has anonymous HIV and STI testing services, which make testing more accessible for those who are concerned about privacy.

How often to test

How often to test depends on each person's risk.

General guidance

  • those with a new or several partners should test regularly
  • those who have sex without protection should consider testing
  • those using PrEP usually test at regular appointments

Test as appropriate

In general, testing every 3 to 12 months is a good approach for those at risk, and it is best to ask a provider about the frequency that suits you.

Self-testing

There are now self-testing options for some infections.

Self-test kits

There are HIV self-test kits that make testing convenient and private, and if the result is positive or uncertain, it is best to get a confirmatory test and counselling at a service.

Always confirm the result

Self-testing is an initial screen, and a confirmatory test and care from a provider help you get the right diagnosis and treatment.

When a result is positive

If a test result is positive, there is no need to panic, because most STIs can be managed.

The next steps

A provider explains the result, advises on treatment or care, and helps plan the next steps. STIs caused by bacteria are usually curable, and those caused by viruses are manageable.

Care for partners too

Telling a partner helps them get tested and treated, preventing passing it back and forth, and a provider can advise on talking with a partner.

You are not alone

Getting a positive result can feel worrying, but STIs are common and have clear ways to manage them, and staff and support networks are ready to help, and getting care early helps you return to good health.

Testing STIs together with HIV

Testing for STIs and HIV together is a good approach.

Test for everything in one visit

Many clinics offer testing for HIV and several STIs in a single visit, which is convenient and thorough, because STIs and HIV are often connected.

Whole sexual-health care

Testing for both gives a complete picture of your sexual health, and having some STIs also increases HIV risk, so caring for both together is important.

Preparing to test

Preparing to test for STIs is easy.

What helps

  • review your own risk so you can tell the staff
  • ask in advance about any preparation, such as some urine tests asking you to hold your urine beforehand
  • prepare questions you want to ask the provider

Not much preparation is needed

In general, STI testing needs little special preparation, and coming with an easy mind and talking openly helps you get the right care.

Booking ahead helps

Booking an appointment ahead reduces waiting time and makes planning your test convenient, and you can find a clinic and book a test at Love2Test, which makes starting to look after your sexual health easier.

In summary

Testing for STIs is the only way to know your sexual-health status for sure, because many infections have no symptoms. There are several test methods — blood, urine, and samples — and each infection has a different time before it starts to show.

Testing is available in many places, convenient and confidential, with anonymous options. Regular testing helps you find and care for infections early, and testing for STIs alongside HIV is a thorough approach. If a result is positive, most STIs can be managed.

If you want to find a clinic and book an STI or HIV test, you can do so at Love2Test.

References

Based on guidance from international and national health authorities.

  1. WHO — sexually transmitted infections
  2. CDC — STI testing
  3. กรมควบคุมโรค กระทรวงสาธารณสุข

Frequently asked questions

Does STI testing hurt?
Most tests are painless or only slightly uncomfortable, such as a blood draw, a urine sample, or a swab, and they do not take long.
When do I get STI test results?
It depends on the test — some give quick results the same day, while others take a few days, and staff will tell you the timing.
How do I prepare for STI testing?
Generally little preparation is needed, but some urine tests may ask you to hold your urine beforehand, so it is best to ask the service in advance.
Where can I test for STIs?
You can test at hospitals, clinics, and community clinics, and you can find and book a clinic at Love2Test.
Is STI testing confidential?
Yes, it is confidential, your results and status are protected, and there are anonymous testing services in Thailand.
How often should I test for STIs?
It depends on your risk, and those with new partners or a risk should test regularly, such as every 3 to 12 months.

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