A, to read the test list need to have a general understanding of the test method Syphilis detection methods are two: 1, non-syphilis spirochete antigen serologic test (screening test): heart phospholipids as antigen, detection of anti-cardiolipin antibodies in the serum. Including VDRL, USR, RPR, etc. 2, syphilis spirochete antigen serologic test (confirmatory test): using live or dead syphilis spirochetes or their components to detect spirochete antibodies. It includes FTA-ABS, TPHA/TPPA. The screening test is a routine test for a large number of people and a quantitative test for observing the efficacy, whether recurrence or reinfection. With adequate anti-May treatment, the results can be converted to negative. For example: VDRL, USR, RPR, etc. The confirmatory test is generally used as a confirmatory test. Even after adequate anti-May treatment, the result will not turn negative. For example: FTA-ABS, TPHA/TPPA, etc. Second, the initial diagnosis of laboratory tests 1, screening test results negative: if the patient is suspected of syphilis, further check the confirmatory test; otherwise, syphilis can be ruled out. 2.Screening test result positive: history and physical examination results are consistent with syphilis can confirm the diagnosis; history and physical examination results are not consistent with syphilis, should further do confirmatory test, positive can confirm the diagnosis, negative is a false positive screening test. Third, the treatment of laboratory tests at this time the patient already knows whether he is a phase I or phase II syphilis and has received treatment with benzathine penicillin. It depends on the titer of the screening test, high titer, heavy disease, for example: 1: 64 than 1: 2 heavy. For stage I and II syphilis, the titer should drop 4 times within 3 months. (e.g., from 1:64 to less than 1:4); 8 times lower within 6 months. Turning negative within 1 year for stage I syphilis and within 2 years for stage II syphilis. Note a phenomenon DDD syphilis serum fixation, these patients after regular anti-syphilis treatment, but also can not make the serum titer reduction. Fourth, the laboratory list at the time of re-examination The same is to see the screening test. The test is repeated every 3 months in the first year, every 6 months in the second year, and annually thereafter. The titer should be at least 4 times lower at 6 months after treatment. Previous syphilis sufferers may have a slower titer drop. If titers fall slowly, an HIV test and cerebrospinal fluid (CSF) evaluation are recommended. If the titer is more than 2 times higher, the dose needs to be doubled and retreated. For more complex conditions, laboratory tests will need to be interpreted by a specialist and a treatment plan determined.