Chlamydia IgG Antibody Detection by Immunoassay (Serum/Plasma)

Why This Test Is Done

Your healthcare provider may recommend this test if you have symptoms suggestive of past exposure to *Chlamydia*, such as recurrent urinary tract infections, unexplained eye or genital irritation, or if you’ve had unprotected sexual contact with someone known to have chlamydia. It can also be part of a broader evaluation for sexually transmitted infections (STIs) or reproductive health concerns.

What to Expect During the Test

A blood sample is drawn from a vein in your arm. You may feel a slight pinch, but it usually takes only a few minutes. The sample is then sent to a lab for testing. Results are typically available within 1–3 business days.

What the Results Mean

A positive result indicates the presence of IgG antibodies, suggesting you may have been exposed to *Chlamydia* at some point. However, this does not confirm an active infection—it only shows your immune system has recognized the bacteria. A negative result means no detectable antibodies were found, but it does not rule out past exposure if testing was done too early.

Next Steps and Follow-Up

If your test is positive, your provider may recommend additional testing (e.g., IgM antibodies for recent infection) or retesting if symptoms persist. If you’re sexually active, discuss protection strategies with your provider to prevent future exposure. Always follow up with your healthcare team for guidance tailored to your situation.