The items that need to be checked before marriage are as follows:1. Blood tests, such as blood routine, blood type, liver and kidney function, to know whether they are normal and whether they need to be treated. Urine routine to understand whether there is lower urinary tract infection, if so, to carry out timely treatment. Do syphilis antibody, AIDS antibody and hepatitis marker screening, if abnormalities are found, prompt treatment should be carried out before marriage.2. Do gynecological ultrasound, electrocardiogram to find out whether there are any genital deformities or lesions of the genitals, and to find out whether the cardiac cardiac electrodes are normal or not, and the male partner has to do the ultrasound of the urinary system and the ultrasound of the prostate gland.3. Do ask whether there is any hereditary disease in the family, and which kind of hereditary disease, and the doctor will help to judge whether it is possible to get married and whether you can have normal children after marriage, or whether you need to be screened for special genetic diseases before you prepare for pregnancy.