At present, marriage examinations in China are free of charge. General marriage examination refers to pre-marital examination, which mainly includes basic body examination, reproductive system specialist examination and related hereditary disease counseling. 1. Basic physical examination: generally includes blood test, urine test, liver and kidney function, electrocardiogram, etc., and may also include Hepatitis B V, syphilis, AIDS and other tests. 2. Reproductive system specialties: Generally speaking, both husband and wife are required to go to gynecology, urology examination, both sides of the reproductive system according to the appearance and development to determine whether there is any abnormality on both sides, whether suitable for marriage. 3. Relevant counseling: Generally speaking, you can learn through relevant counseling whether there are hereditary diseases in the family of both couples, and judge the disease history of both families to see whether it will affect the subsequent fertility. Couples who are planning to get married can apply for a free premarital checkup at designated hospitals. Free premarital checkups are conducted 3 months before or 1 month after the registration of marriage.