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Doctor insights on: Is It Possible To Have A False Negative Syphilis Test

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Is it possible to have a false negative syphilis test?

Is it possible to have a false negative syphilis test?

Yes: Testing for syphilis can sometimes be a complicated process which requires expert interpretation. Unfortunately there is no test in medicine which is 100% accurate 100% of the time. A false negative syphilis test may occur within the first 2 weeks after the common syphilis ulcer appears. Patients with immune disorder such as HIV and aids may also test falsely negative for syphilis. ...Read more

Dr. H. Hunter Handsfield
508 doctors shared insights

Syphilis (Definition)

Syphilis is a sexually transmitted disease involving a ...Read more


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Is a negative syphilis test at 8 weeks conclusive?

Is a negative syphilis test at 8 weeks conclusive?

Yes: Syphilis blood tests virtually always turn positive within 6 weeks. Your negative result at 8 weeks is conclusive. ...Read more

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Wb indicating protein 41 active.I read its a lot of controversy about p41.Dfm showed spirochetes and gemmas.Syphilis test negative.Is it lyme?

Wb indicating protein 41 active.I read its a lot of controversy about p41.Dfm showed spirochetes and gemmas.Syphilis test negative.Is it lyme?

Be skeptical: Lyme disease is not transmitted sexually, but through bites from infected ticks. Diagnosis using western blot is complicated and requires review of the entire blot and assessment of your other symptoms and risks. Dfm reliability is dependent on the person doing it, and may be manipulated in an attempt to sell you unproven or even dangerous treatments for lyme disease. ...Read more

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How could syphilis test be negative and anticardiolipin autoantibody be positive? Do some syphilis tests only look for antibodies to t. Pallidum?

Different types of: Tests. There are two different types of tests, one being RPR and it has more false positives due to auto-antibodies. Tests specific for treponemal antigens are more specific. ...Read more

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Is a syphilis test accurate after just about five years after last exposure?Can syphilis disappear before then?Shold I still be woried?nontreponemal?

Is a syphilis test accurate after just about five years after last exposure?Can syphilis disappear before then?Shold I still be woried?nontreponemal?

Testing for Syphilis: Exposure is different from infection. Once infected tests some tests are + for life. exposure does not give + test. Some tests are good + for life. Unless your immune system is ravaged by AIDs. Good review at uptodate.com Trust you use a condom. ...Read more

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I have read on that 6 weeks after a possible exposure is good for a syphilis test, mine was done at 39 days instead of 42. Still valid? 3 days matter?

Here are some ...: Generally speaking the number or values as quoted in the literature are so-called normal "range" to cover some 95% of cases and should be used as references of daily medical practice and living, not at 100% like machine. In practice, it's good idea to combine high vigilance and keen diligence to assess history, practice safe sex, and rouse professional alertness so to test timely - not rigidly. ...Read more