The tppa is a specific syphilis spirochete antibody test and the rpr is a non-specific antibody test for syphilis. tppa positive and rpr negative has two meanings, one is that you have been infected with syphilis before, but have recovered through treatment or for autoantibody reasons. The other is that the recent sexual intercourse has just occurred, just been infected by the syphilis virus, rpr has not yet appeared positive results. Now this result, you can temporarily observe first, a month later to the hospital dermatological venereal disease department recheck. If the result is still positive for tppa and negative for rpr, it means that the infection has been recovered from before. If the two results are positive, it indicates that the recent syphilis infection, the need for treatment.