Health checkups are done before marriage. A marriage checkup is a test that is done because of marriage, and the patient is not tested because of some disease or physical discomfort that has occurred. These examinations are mandatory by the state and every couple needs to undergo them before they get married. The main purpose of the marriage test is to check whether the couple has serious genital deformities, infectious diseases or venereal diseases, whether they are consanguineous, etc. Because these diseases may affect the couple’s health and reproductive function, whether to give birth to deformed children, etc.. The main items of premarital examination are gynecological, internal examination, ultrasound examination and blood sampling for STD and infectious disease related examination, also basic information will be collected, including whether the family has genetic disease, infectious disease, whether the marriage is consanguineous, the patient’s weight, blood pressure, etc.