The DNA test during pregnancy costs about 2500 RMB and is performed by drawing the pregnant woman’s blood from a vein at around 15-20 weeks of pregnancy. From the point of view of eugenics, if the diagnosis is confirmed during pregnancy, the pregnancy can be terminated in order to avoid the birth of such a baby and to improve the quality of the birth. It is necessary to have regular checkups after pregnancy, such as early Down’s syndrome screening, non-invasive DNA, ultrasound, etc., to detect any abnormalities in fetal growth and development so that early treatment can be given.