A positive syphilis antibody but a negative syphilis titer suggests that the person has had syphilis and is now cured; or that the treatment is currently effective. 1. Cured: Since the human body can produce syphilis antibodies after infection, the antibody is positive for life once produced. The syphilis titer is positive only when the patient is in the infected stage. If the patient once tested positive for syphilis, through the timely standardization of adequate amount of treatment and regular review for 2 years, the blood test found that the syphilis antibody is positive but the syphilis titer is negative, suggesting that the person has been cured of syphilis. 2. Current treatment is effective: if in the medical treatment, syphilis antibody is positive, syphilis titer is negative, and the patient does not know that he/she is infected with syphilis, then it suggests that the patient has syphilis infection in the past, and the patient in the course of the disease unintentionally take penicillin, cephalosporin and other antibiotics to the body of the spirochete of syphilis in time to inhibit the syphilis, effective treatment of syphilis, but the patient should be regular review of syphilis serology for 2-3 years, in order to clinically determine the cure. The patient should also review the syphilis serology regularly for 2-3 years before clinical cure can be determined. There are also a very small number of patients with immune diseases and even a very small number of normal people may appear syphilis antibody positive but syphilis titer negative such biological false positive, so it should be combined with the clinical and epidemiological history of the comprehensive judgment, it is recommended that the patient actively seek medical treatment, under the guidance of the doctor’s comprehensive judgment.