Kauri Health Clinic · BTS Punnawithi

Chlamydia: symptoms, testing and effective treatment

Learn about silent infection, sample sites and antibiotic treatment.

What is chlamydia?

Chlamydia is a common, treatable bacterial STI caused by Chlamydia trachomatis. It can affect the urethra, cervix, rectum or throat and often causes no symptoms. Antibiotics can cure the infection. Finding it early matters because untreated infection can lead to pelvic inflammatory disease, fertility problems or inflammation around the testicles. Kauri offers urine-panel testing and medication following a clinical assessment.

Infection type
Bacterial infection
Relevant sample
Urine; swabs depend on exposure site
Treatment outlook
Curable with appropriate antibiotics

How do you get chlamydia?

Chlamydia spreads through vaginal, anal or oral sex with someone who has the infection, including when they feel well. Ejaculation is not required for transmission. It can also pass to a baby during birth. Condoms reduce risk when used correctly. Having had chlamydia before does not create immunity; sex with an untreated or newly infected partner can lead to reinfection.

What symptoms can chlamydia cause?

Possible symptoms include burning when passing urine, unusual penile or vaginal discharge, bleeding between periods or after sex, and lower abdominal pain. Rectal infection may cause pain, discharge or bleeding. Symptoms may take several weeks to appear, and many infections remain silent. Severe pelvic pain, fever or pregnancy with abdominal pain needs prompt assessment. Sudden severe testicular pain is an emergency because other causes, including torsion, must be excluded.

How long can chlamydia stay without symptoms?

Untreated chlamydia can remain unnoticed for a long time, including months or longer. There is no safe waiting period after which symptoms disappearing proves the infection has gone. A positive result does not reliably establish when the infection was acquired or which partner transmitted it. Testing, appropriate treatment and partner care are more useful than trying to date an infection from symptoms.

Which sample and test are used for chlamydia?

Molecular tests that detect the organism's genetic material are commonly used. Urine is used for urogenital testing; a vaginal swab may be preferred for vaginal or cervical infection. Throat or rectal exposure can require a swab from that site, because a negative urine result does not exclude infection elsewhere. Kauri's 7-target and 18-target urine panels both include chlamydia. Tell the team about symptoms and exposure sites before selecting a panel.

What medication treats chlamydia?

Doxycycline is commonly the first-choice antibiotic for nonpregnant adults. Azithromycin or another appropriate alternative may be selected in pregnancy or other circumstances. Kauri provides medication for chlamydia after assessment; the prescription depends on pregnancy, allergies, infection site and clinical findings. Finish the prescribed course. Avoid sex until the treatment course or required waiting interval is complete, symptoms have resolved and partners have been treated.

When should I test again after chlamydia treatment?

Retesting at about 3 months helps detect reinfection. This is different from a test of cure, which is not routinely needed after standard treatment in most nonpregnant people. Pregnancy, persistent symptoms or concern about treatment completion may require earlier follow-up. Molecular testing less than 4 weeks after treatment can detect material from dead organisms and be misleading. Your clinician sets the right timing and discusses partner testing or treatment.

Patient questions

Chlamydia: common questions

How soon after sex should I arrange testing?

Contact the clinic promptly if you have symptoms or a partner has tested positive. A very early negative result may miss a new infection, so the clinician uses the exposure date and test method to plan testing or a repeat sample. The panel's 24-hour or 3–5-day result time describes laboratory processing, not how soon after sex infection can be excluded.

Will the blood STI panel find chlamydia?

No. The four-infection blood panel checks HIV, syphilis, hepatitis B and hepatitis C. Chlamydia is included in the urine panels. The right sample also depends on the body site exposed.

Can I get chlamydia again after treatment?

Yes. Treatment clears the infection but does not prevent a new one. Partner treatment, condoms and follow-up testing help reduce the risk of another infection.

Relevant testing options at Kauri

Choose a focused test or a broader panel according to your concern. The options below link to the complete STI menu, where you can compare coverage and preparation.

The listed options for chlamydia and gonorrhea are the urine panels below. Individual HIV, syphilis and hepatitis blood tests do not test for these two bacteria. Share oral or anal exposure so the team can advise on sample-site assessment.

18-Target Urine Sexual Health Panel

฿3,590

Our expanded urine panel includes chlamydia, gonorrhoea and additional bacterial, viral, protozoal and yeast targets.

Panel results
24 hours
View this panel and its full test list

7-Target Urine STI Panel

฿2,490

A smaller urine panel covering chlamydia, gonorrhoea, trichomonas, Mycoplasma and Ureaplasma targets.

Panel results
3–5 days
View this panel and its full test list

Panel turnaround starts after sample collection; it is not the time from exposure until infection becomes detectable. Individual-test timing and any additional clinical assessment are confirmed separately.

STI clinical references

Updated 17 October 2026. Educational information based on the clinical sources below; Kauri supplied the listed service availability and prices. Your assessment determines the tests and treatment appropriate for you.

  1. WHO: Chlamydia
  2. CDC: About Chlamydia
  3. CDC: Chlamydia Treatment Guidelines

Kauri Health Clinic · BTS Punnawithi

Plan a confidential visit at BTS Punnawithi

Kauri Health Clinic is at BTS Punnawithi, 3063 Sukhumvit Rd, Bang Chak, Phra Khanong, Bangkok 10260. Open Tuesday–Saturday, 9:00–18:00; closed Sunday and Monday. Tell us your concern, when any exposure happened and whether you have symptoms. Bring previous results and a list of medicines; the team will explain preparation and next steps privately.

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