Can anything cause multiple false negative syphilis treponemal eia antibody tests? for wrongly treated syph? had symptoms that line up like palm rash and scrotum patches. especially when testing ten years after possible exposure?

If rashes are present and syphilis is suspected as the cause, nontreponemal test (RPR or VDRL) should be positive. If nontreponemal test is negative, syphilis is ruled out. If nontreponemal test is positive but treponemal test is negative, syphilis is also ruled out. If syphilis is not treated correctly and active disease (primary and secondary) is present, nontreponemal test should be positive.

In early . or very late and if the body does not produce antibodies for some reason. In your case pl see a infectios disease doc. good luck