Syphilis is one of the items that must be checked when handling health certificates. Besides syphilis, there will be other tests, such as HIV and hepatitis C, because syphilis is a sexually transmitted disease, which is of great significance to public health and personal health. Hepatitis A and hepatitis E are also the key detection objects of health certificate, and they are diseases transmitted through digestive tract. The applicant has active syphilis and does not meet the requirements of health certificate.