The seven tests for eugenics are to check for the presence of viral infections. The main ones are Toxoplasma gondii antibodies, including IgG and IgM, and two antibodies for cytomegalovirus are those for rubella virus and herpes simplex virus. Different positive or negative results of these antibodies represent different meanings. If the result is positive for IgG, it means that the person has been infected with the virus and is resistant to it; if the result is positive for IgM, it means that the person is newly infected with the virus and needs to be treated in time, otherwise it will cause the corresponding symptoms. If the virus is not treated properly during pregnancy, it will affect the baby’s development or miscarriage, fetal abortion, or baby malformation. If there is any abnormality during the preparation for pregnancy, it should be treated promptly, and if it is during pregnancy, it should also be treated properly and medication should be used carefully.