The self-test for syphilis in men is to use a diagnostic kit for antibodies to the syphilis spirochete, but in order to completely rule out or confirm the diagnosis of syphilis, you should go to a regular hospital for testing. Syphilis is a sexually transmitted disease (STD) caused by infection with the syphilis spirochete. The current method of self-testing for syphilis is to use a syphilis antibody diagnostic kit. The examiner needs to use a blood needle to collect a blood sample and then use a pipette to suck it out and drop it into the sample hole of the kit, and the result of the test can be seen in about half an hour. If the result is negative with only a red line in the quality control area, it is more likely that the person is not infected with syphilis. If both the quality control area and the test area show a red line and the result is positive, it means that it is very likely to be infected with the syphilis spirochete, and the patient needs to go to the hospital for further testing to confirm it. In summary, although the self-testing method of syphilis is clinically recognized, in order to completely exclude or confirm the diagnosis, it is necessary to go to a tertiary hospital for further examination, so as to avoid the occurrence of misdiagnosis, and then delay the condition.