General health certificate needs to do some routine examination, including chest X-ray, blood routine, hepatitis B five items, urine routine and so on. Some occupations also need routine leucorrhea examination, such as kindergarten teachers' occupations, which need routine leucorrhea examination to rule out vaginal inflammation such as trichomonal vaginitis and candidal vaginitis, and can only apply for health certificate after passing the examination. It is best to have an empty stomach on the day of examination, and it is necessary to draw blood to check whether the antibody against hepatitis B surface antigen is positive. In the process of getting a health certificate, it is recommended not to drink alcohol three days in advance, to be vegetarian and avoid being greasy, which sometimes affects the laboratory indicators.