Hello. Thanks for writing to us at healthcaremagic
VDRL can be Biologic falsely positive (BFP), specially if it is in low titres such as in your case.
Moreover, it is not a confirmatory test for
syphilis.
Many infectious diseases have been reported as causes of transient biologic false positive VDRL e.g
malaria, leprosy,
tuberculosis, infectious mononucleosis;
pregnancy and immunizations etc are also causes of transient BFP reactivity among many others.
Connective tissue disease may cause a chronic BFP reactivity.
History may be helpful in these cases, specially in those who are unlikely to have been infected with syphilis.
Upto 10% to 15% of patients may give a false positive test result with VDRL.
Therefore, a low titre positive VDRL should always be followed up with a specific test for syphilis like TPHA test, which would be conclusive.
Regards