Tag: VDRL

A Positive Syphilis Screening Test That Isn’t Syphilis: The Biological False Positive

A reactive VDRL or RPR in someone with no risk and no symptoms is often not syphilis at all. Dr. Soarawee Weerasopone explains what a biological false positive is, the one cause that matters more than the rest, and why a persistent one should never simply be dismissed.

Syphilis Blood Tests Explained: Why There Are Two Kinds

A positive syphilis test does not always mean an active infection — and one of the two tests stays positive for the rest of your life even after you are cured. Dr. Soarawee Weerasopone, urologist at Bangkok Hospital, explains what each test measures and how to read them together.