STI TEST · BANGKOK
Chlamydia Test in Bangkok
A chlamydia PCR test from a urine sample or swab, taken by a doctor who comes to you in Bangkok. Chlamydia usually has no symptoms and is easily cured.
Message Ovio Medically reviewed by Kewalee Rujikajorn, MD · 24 September 2026
Chlamydia test at a glance.
- SampleFirst-catch urine, or a swab
- Test from2 weeks after exposure
- SymptomsMost people have none
- TreatmentCured with antibiotic tablets
- Who comesA doctor, to your home, condo, hotel or office
- ResultsExplained by your doctor
- PriceConfirmed before your visit
THE INFECTION
What is chlamydia?
- Cause
- A bacterium, Chlamydia trachomatis
- Also called
- Chlamydia trachomatis infection · Chlamydial infection
Chlamydia is the most commonly diagnosed bacterial STI in the world. It is caused by the bacterium Chlamydia trachomatis and passes on through vaginal, anal and oral sex. It can infect the cervix, urethra, rectum, throat and eyes.
Most people with chlamydia never notice anything wrong, so it can be passed on for months without anyone knowing. That silence is also what makes it harmful: untreated chlamydia can spread to the womb and fallopian tubes and cause pelvic inflammatory disease, long-term pelvic pain, ectopic pregnancy and infertility. In men it can cause painful swelling of the testicles.
The good news is that the test is simple and painless, a urine sample or a swab, and chlamydia is cured with a short course of antibiotics.
Symptoms of chlamydia.
When chlamydia does cause symptoms, they usually appear one to three weeks after sex, and they can be mild enough to ignore.
Women
- A change in vaginal discharge
- Bleeding between periods or after sex
- Pain in the lower abdomen
- Pain when passing urine
Men
- Burning when passing urine
- White, cloudy or watery discharge from the penis
- Pain or swelling in the testicles
Rectum, throat or eyes
- Rectal pain, discharge or bleeding
- Usually nothing in the throat
- Red, sore eyes (conjunctivitis)
No symptoms does not mean no infection. Untreated chlamydia is one of the leading preventable causes of infertility.
How the chlamydia test works.
Chlamydia is found with a nucleic acid amplification test (NAAT, often called PCR), which detects the bacterium's genetic material. It is highly accurate on the right sample.
Urine PCR
First-catch urine
The usual test for men, and an option for women. Tests the urethra only.
Vaginal swab PCR
Vaginal swab
The most sensitive sample for women, and quick and painless to take.
Rectal and throat swab PCR
Rectal or throat swab
Needed after anal or oral sex. Infections at these sites are usually silent and are missed by urine testing.
Sources: CDC2, WHO1, Sexual Health Sheffield NHS3
Testing with Ovio
- Tell us what you needCall or message Ovio, privately. Say where you are in Bangkok and when suits you.
- A doctor comes to youAt your home, condo, hotel or office. The doctor asks about your concerns and recommends the right samples.
- Samples go to the laboratoryTaken there and then; for most tests the visit itself is short.
- Your result, explainedWhat it means, and what to do next if anything needs treatment or a repeat test.
Not sure which test you need?
Speak to one of our doctors. They will ask about your situation and suggest the tests, samples and timing that fit it.
When to test for chlamydia.
Every test has a window period: the time after exposure before it can reliably detect an infection. A test taken too early can be negative even when the infection is there.
| Test | Sample | Timing after exposure | Good to know |
|---|---|---|---|
| NAAT | Urine or vaginal/rectal swab; site depends on exposure | Test from 14 days | The NHS two-week point is screening guidance, not a claim that every earlier test is negative. |
Sources: The Rotherham NHS Foundation Trust4, Sexual Health Sheffield NHS3, CDC2
Who should get tested
- Anyone under 25 who is sexually active, at least once a year
- Anyone with a new partner, or more than one partner
- Anyone whose partner has chlamydia or another STI
- Anyone with unusual discharge, pain when urinating or bleeding after sex
- Men who have sex with men, including throat and rectal swabs
- Anyone who was treated for chlamydia three months ago (to check for reinfection)
AFTER THE TEST
Results and next steps.
A positive result is treated with antibiotics, usually a 7-day course of doxycycline. Pregnant people receive a different antibiotic. Most people are cured with one course.
Avoid sex until you and any partners have finished treatment and for 7 days afterwards. Partners from the last few months should be tested and treated, even without symptoms, or the infection can pass straight back to you.
Guidelines recommend a repeat test about three months after treatment, because reinfection is common.
This page is general information, not a diagnosis. If you are unwell, in severe pain or worried about something urgent, contact a doctor now or go to a hospital emergency department.
Chlamydia testing:
your questions.
Can't see your question? Ask one of our doctors.
Yes, and most people do. Many people with chlamydia have no symptoms or only mild ones, which is why testing after unprotected sex or a new partner matters even if you feel fine.
Either, depending on the type of sex you have had. A first-catch urine sample tests the urethra. A vaginal swab is the most accurate sample for women. If you have had anal or oral sex, a rectal or throat swab is needed, because a urine test cannot detect an infection in those places.
It is the first part of the stream, roughly the first 20 to 30 ml, rather than midstream. That first flow carries the most bacteria from the urethra. For the best result, avoid urinating for at least an hour before the sample is taken.
NHS services recommend testing two weeks after the sex you are worried about. A test taken earlier can miss an infection that is still developing. If you have symptoms, test straight away and retest later if the doctor advises it.
With antibiotic tablets. International guidelines recommend a 7-day course of doxycycline as the first choice, with alternatives for pregnancy or allergy. Avoid sex until you and your partners have completed treatment, and for 7 days after.
Yes. Chlamydia can pass to the baby during birth and cause eye infections and pneumonia in newborns, and it is linked to complications in pregnancy. Testing is recommended for pregnant people under 25 or at higher risk, and treatment during pregnancy is safe, using antibiotics chosen for pregnancy.
Yes. Having had chlamydia does not make you immune, and reinfection from an untreated partner is common. That is why guidelines advise retesting about three months after treatment.
MEDICALLY REVIEWED
Kewalee Rujikajorn, MD
General Practitioner, Bangkok
Reviewed 24 September 2026
Kewalee Rujikajorn is a general practitioner in Bangkok, providing outpatient care for urgent, acute and chronic illness and remote consultations through a telemedicine platform. A graduate of the Medical University of Lublin, Kewalee completed postgraduate medical training at Thammasat University Hospital and has published research in ophthalmology.
Sources.
- Chlamydia: fact sheetWorld Health Organization, 21 November 2025
- Chlamydial Infections: STI Treatment GuidelinesUS Centers for Disease Control and Prevention
- Chlamydia and gonorrhoea factsheetSexual Health Sheffield NHS
- Sexual health home testing: window periodsThe Rotherham NHS Foundation Trust
Ovio uses official public-health sources and reviews this page when they change. Questions about this content: info@oviowellness.com.
Speak to one of our doctors.
A doctor comes to your home, condo, hotel or office in Bangkok, talks through what you are worried about, takes the samples for your chlamydia test and explains what happens next.