The marriage test GPA is usually a result that can be obtained through questioning, and cannot be checked through a physical examination, for example. Marriage test GPA examination refers to the examination of three values, G stands for the number of pregnancies, P stands for the number of births, and A stands for the number of miscarriages. The GPA check belongs to the simpler items in the marriage examination, inquiring about both parties through the method of questioning, including the number of pregnancies, the number of births and the number of miscarriages. Marital examination is a comprehensive and systematic health examination, which is of great significance to both men and women. The premarital examination also includes inquiring about medical history, family history, physical examination, routine auxiliary examination and other special examination. In order to detect abnormalities and diseases, earlier treatment. The purpose of premarital examination is to give healthy guidance to both men and women on whether they are able to get pregnant for the sake of the health of the next generation. If one of the parties is detected to have infectious diseases, acute stage of liver and kidney function diseases, etc. after the marriage examination, it is not suitable for pregnancy at this time.