Hello dear, Thank you for your contact to health care magic. I read and understand your concern. I am Dr Arun Tank answering your concern. TPHA means treponema pallidum he agglutination assay. This test will be positive in the treponema pallidum bacteria which is the causative agent of the syphillis. So if you are the syphilitic person than you will have positive reaction on the test. TPHA may be a false positive some cases. In my advice you should go for the second confirmatory test that can help decide the diagnosis. If the second test is stating the same result than you can be a syphilitc person and requires a complete treatment. Once you take the complete schedule for the treatment you can be free from the disease and never recieces the positive test there after. Please avoid sexual inter course. It is a sexually transmitted disease and can be spread via sex. So avoidance of the sex till you received the negative report can prevent further transmission to the partner. I will be happy to answer your further concern on bit.ly/DrArun. Thank you, Dr Arun Tank Infectious diseases specialist, HCM.