Thank you for asking the query.
The syphilis test you have mentioned here is probably a Non Treponemal test which measures a rise in antibody titre for Syphilis diagnosis. That means two measurements of the titres are needed. In your case the first value is probably 1:4 and second is 1:8. (In an ideal scenario it should be same when repeated.-That is 1:4) . This is called a raise in titre which may indicate syphilis. BUT, this can be falsely positive too under certain conditions. Also ideally a fourfold rise is needed. (Not two fold as in your case).
This is the reason why your Doctor is suspecting Syphilis and asking you related questions.
In short there is possibility that you might have Syphilis, but there is no definitive evidence clinically or lab wise. You will need other Syphillis related test to confirm. Your sexual history becomes relevant here. If you had a high risk sexual behaviour or un protected sex the chance / risk increases. But do not worry, diagnosis and treatment (in case you test positive) is simple and straightforward.
I would like to know whether you have any genital rashes or symptoms. Also whether you were exposed to unprotected sex (only if you wish to comment)
Please feel free to ask any queries you may have.
Patient replied :
I don't have any rashes. But I do have genital itching. I am in a relationship but did have a sexual unfortunate encounter otherwise. I know I was risky. My doc also keeps asking if I have Lyme disease or malaria but I wouldn't know. I answered no to all questions she asks
The reason your Doctor is asking for history of Malaria or Lymes is because these can cause a falsely elevated (positive) Syphilis Test. This does not imply that you are at risk for Malaria or Lymes.
As I said earlier, there is a small rise in titre, which needs to be evaluated. There is no need for any worry now, just followup with your Doctor. This is general affair. Gential itching is not suggestive of Syphillis.
Hope this helps
Please feel free to ask followup questions.