Chlamydia Testing: Window Period, Sample Types, and Treatment
Chlamydia is the most commonly reported bacterial sexually transmitted infection in the United States, and most people who have it feel completely well. A nucleic acid amplification test, or NAAT, can detect the bacterium from a first-catch urine sample or a swab. Because the test does not turn positive immediately, waiting about one to two weeks after exposure improves accuracy. Walk-in collection makes confidential testing easy, and results usually return within a few business days. This guide covers who should test, how the sample is collected, and what a positive result means.
Key Takeaways
- Chlamydia often causes no symptoms, so testing is the only reliable way to detect it.
- NAAT testing on first-catch urine or a swab is the preferred method.
- A common testing window is about one to two weeks after potential exposure.
- Chlamydia is curable with antibiotics, and partners should be treated to prevent reinfection.
- Direct-access walk-in testing is confidential and needs no physician referral.
Frequently Asked Questions
How long after exposure can chlamydia be detected?
A NAAT can usually detect chlamydia about one to two weeks after exposure. Testing too early can produce a false negative.
Can chlamydia be tested with urine?
Yes. First-catch urine is a standard sample for chlamydia testing in people with a penis. A vaginal or endocervical swab is often used for others.
Does a positive chlamydia test mean my partner cheated?
Not necessarily. Chlamydia can be present for a long time without symptoms, so the infection may predate the current relationship.
Is chlamydia curable?
Yes. Chlamydia is cured with a course of antibiotics. Sexual partners should also be tested and treated, and you should wait until treatment is complete before resuming sex.
Sources
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