The Eugenics 4 test is a blood test that can be done when you are ready to get pregnant. It includes herpes simplex virus type 1, herpes simplex virus type 2, toxoplasmosis infection, rubella virus infection, and cytomegalovirus infection. If you are preparing to get pregnant but have not conceived for more than four months, it is advisable to have a new test for the next pregnancy in order to find out if there is any recent viral infection during this period, which is likely to cause malformations in the fetus. If there is a recent viral infection, the pregnancy needs to be terminated once it is conceived. In addition, the eugenics test is a must, it is related to the normal development of the fetus, and it is given from the perspective of eugenics in order to achieve the effect of eugenics.