Don’t drink water before the marriage test. Most of the marriage examinations for men check heart, liver, lung, muscle tone, genital examination, blood routine, urine routine, liver function, blood sugar, hepatitis B surface antigen, syphilis antibody, AIDS and other tests. Fasting is required before the examination, otherwise it will affect the accuracy of the results of blood glucose, liver function and other tests. The man should stop smoking and drinking and eat healthy before the marriage test. Most of the marriage checkups for the female side check for rubella virus, herpes simplex virus, liver function, kidney function, blood sugar, syphilis, AIDS, thyroid function test, vaginal secretion test, uterine adnex ultrasonography and so on. Fasting is required before the test, otherwise the accuracy of the results will be affected. The marriage test should not be conducted during the menstrual period, no sexual intercourse the day before the marriage test, no vaginal douching, etc. When abnormalities are found in the marriage test, consult the doctor in time and give appropriate treatment under the doctor’s guidance.