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Doctor insights on: What Would Cause A False Positive For Chlamydia

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What would cause a false positive for chlamydia?

What would cause a false positive for chlamydia?

Low chance: The test uses a process called PCR which amplifies (expands by huge factors) the bug.I would expect the test is correct.Ngu is the most common std in usa.Hpv is also very common.Please use a condom! ...Read more

Dr. H. Hunter Handsfield
1,127 doctors shared insights

Chlamydia Infection (Definition)

Chlamydia infection is a sexually transmitted infection caused by a bacteria. Genital symptoms include burning on urination, vaginal or penile discharge, pain with sexual intercourse or no symptoms at all. In many patients without symptoms, chlamydial infections can spread upwards into the abdomen and cause serious complications due to scarring. Newborns can acquire chlamydial eye infection from birth ...Read more


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Can having BV cause a false positive for chlamydia?

Can having BV cause a false positive for  chlamydia?

Here are some...: No test carries 100% accuracy. If tested result is marginal or weak (+) and not correlated well with clinical picture, repeat test for confirmation. For chlamydia, most of the infected are asymptomatic. So, either trust the report or repeat it as clinically justified. More? Talk with doc. ...Read more

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Is there such a thing as a false positive chlamydia test?

Is there such a thing as a false positive chlamydia test?

Yes: All tests have both false positives (meaning you don't really have it) and false negatives (meaning you really do have it). Chlamydia testing is very accurate but yes a false test is possible. You can always requests a retest and the test can be done through a different lab for confirmation. ...Read more

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Is a chlamydia test 100% accurate? How would you know if you have a false positive?

Is a chlamydia test 100% accurate? How would you know if you have a false positive?

90 - 95% accurate: However false positives do occur so that you can be retested & 2nd positive test would be definitive. You are free & clear if repeat is negative & 2 weeks have passed since encounter where you might have acquired it. ...Read more

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I tested positive for chlamydia, but my boyfriend tested negative in two different tests. Did I have a false positive?

I tested positive for chlamydia, but my boyfriend tested negative in two different tests. Did I have a false positive?

Not necessarily: It's common to find chlamydia in only one person in a couple. False pos tests are rare; probably your test is accurate but bf's tests maybe false neg. Or you had it first and he was not yet infected. Or he had chlamydia that cleared before he was tested. Or he could have been treated but not told you; or maybe an antibiotic for something else that cured his chlamydia. You both must be treated. ...Read more

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Hello, I am a virgin, I tested positive for Chlamydia. My boyfriend has tested negative, could this be a false positive?

Hello, I am a virgin, I tested positive for Chlamydia.  My boyfriend has tested negative, could this be a false positive?

More info needed: Something doesn't compute. Nearly impossible for a virgin (no penile-vaginal sex) to have chlamydia, and also unlikely your boyfriend gave it to you. His negative test makes sense, but your positive one doesn't. OTOH the standard nucleic acid amplification tests (NAAT) are very accurate. Please add comment or a new question with more info: confirm you're female, exact tests done, sexual exposures. ...Read more

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If you think you had a false positive chlamydia test, have already taken the medication to treat it, can you re-test or is it too late?

If you think you had a false positive chlamydia test, have already taken the medication to treat it, can you re-test or is it too late?

You can retest: If you have been treated with proper dose of antibiotics, chances are the test will be negative most of the time if treatment is successful. ...Read more

Chlamydia (Definition)

Chlamydia is a curable sexually transmitted infection that is caused by the bacteria chlamydia trachomatis. This bacteria infects mucous membranes of the urethra, vagina, cervix, anus, rectum, eyelid, and throat. Chlamydia may be asymptomatic but some patients experience pain or burning during urination, nausea, fever, vaginal discharge, ...Read more