How does pregnant embryo stop to bear to return a responsibility?
summary
Pregnancy termination is a very painful thing, which makes parents and family members extremely worried. There are many problems that need to be paid attention to when they are pregnant. Now many friends know more about it, so they pay more attention to the conditioning during pregnancy to avoid some risks. For example, fetal termination is quite common, Fetal arrest is the developmental arrest of the early pregnancy embryo caused by some reason. B ultrasound examination after gestational sac embryo bud or fetal shape is not whole, let's take a look at the following content.
How does pregnant embryo stop to bear to return a responsibility?
The first one is endocrine disorder. Embryo implantation and continuous development depend on the coordination of complex endocrine systems. Any link disorder can lead to abortion. The most common one is luteal dysfunction, which affects the implantation of fertilized eggs or early abortion.
Second: there are immune factors. After pregnancy, intrauterine embryos or fetuses belong to allogeneic transplantation, because the fetus is a combination of parents' genetic material, which can not be exactly the same as the mother. Women's immune maladjustment during pregnancy will cause the mother's rejection of the fetus.
Third: there is reproductive tract infection, in addition to their own factors, infection caused by early pregnancy abortion is more common, early pregnancy serious infection can cause embryo death or abortion, lighter infection can also cause embryo deformity, in addition, uterine abnormalities can also cause abortion.
matters needing attention
What we want to say is that at the early stage of embryonic development, embryos are extremely sensitive to the effects of therapeutic drugs and environmental factors. At this time, all kinds of harmful factors can cause embryo damage, and even stop development