How does pregnant have fetal heart to return a responsibility?

summary

The existence of fetal heart rate proves that the baby in the belly has a new life, if suffering from this disease, it is very uncomfortable, just pregnant, because the baby's body is still very small, so generally only through B-ultrasound examination can show the baby's fetal heart rate and pulse. As time goes by, we can also hear the fetal heartbeat clearly. However, sometimes the fetal heart rate will be abnormal. For example, some pregnant women may still not hear fetal heart rate after 10 weeks of pregnancy. Now I'll tell you about pregnancy without fetal heart rate? Let me tell you this.

How does pregnant have fetal heart to return a responsibility?

First, this kind of situation belongs to fetal arrest. There are many reasons leading to fetal arrest, including immune factors, genetic factors, infectious factors, endocrine factors, etc. In general, the first pregnancy is the occurrence of fetal arrest, if you can not find the cause of the disease, then later pregnancy rely on blind fetal protection is unable to keep.

Second, the main reasons for no fetal heart rate: first, the embryo is too small. Second, the first is to stop childbearing. There are four main reasons for embryo suspension: one is reproductive endocrine, the other is estrogen, the other is progesterone, and the other is chorionic gonadotropin. If the mother's endogenous hormone is not enough, it will cause embryo suspension.

Third: at 7 weeks of pregnancy, B-ultrasound can clearly see the fetal bud and fetal heartbeat, and the fetal sac accounts for about 1 / 3 of the uterine cavity. Three months of pregnancy should be able to see the heart tube pulsation, some people may have long menstrual cycle, or gestational sac implantation later, there will be some time error.

matters needing attention

Generally pregnant 3 months, to the hospital can hear the fetal heart rate. If the baby is more than three months old and has no fetal heart rate, there may be a problem. If not, it means that the development of the germ is not good. If this happens, it is generally recommended not to use this baby.