Seroreversion of T. pallidum specific antibody tests -- mostly studied for FTA-ABS, but not for other confirmatory tests -- does indeed occur, but primarily (and I believe ONLY) when early syphilis is treated within a few weeks of onset. Once syphilis has been present several weeks or longer, those tests remain positive for life. Second, when the tests do revert to negative, it is ONLY after syphilis has been effectively treated. This never happens in the natural course of untreated syphilis. Therefore, in someone who never was diagnosed with syphilis and is tested months or years later, the tests are conclusive proof that tested person does not have syphilis and never did.

And by the way, when someone is treated sufficiently early, typically within a month or two of catching it, and if their TP specific confirmatory test later becomes negative, that person is at zero risk for having ongoing syphilis or for the infection to recur and cause problems. They are free of syphilis until and unless they have a new exposure and a new infection.

From the information provided in your previous thread, it is and remains 100% certain that neither you, your wife, nor your child has syphilis and never did. All is well. Do your best to stop worrying about it.

HHH, MD

And yes, I'll bet nobody in the world in the past 30 years has acquired syphilis by oral contact with intact skin anywhere on the body, including the scrotum. I didn't closely re-read your previous thread, but if that was the exposure on your mind and the time, none of your concerns about syphilis testing had any basis at all.

The nature of your questions strongly suggests a rather abnormal obsession with syphilis, and maybe reflecting psychological conflicts over sex in general -- e.g. your sexual experiences before marriage. If I'm wrong, that's great -- no worries. But if I'm right, and you frequently dwell on such thoughts, you might consider professional counseling. I suggest it from compassion, not criticism.