What reason is not fetal heart rate caused

summary

A few days ago, my female colleagues and I went to have a physical examination after pregnancy. We were almost three months after pregnancy. Everything was normal, but my colleagues couldn't find the fetal heart rate, that is to say, they didn't detect the fetal heart rate. This is the first time I've heard about it. It seems that my colleagues are very nervous and I don't know what to do. What is the cause of fetal heart failure? Let me talk about it.

What reason is not fetal heart rate caused

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

Usually to avoid excessive fatigue, more to ensure adequate sleep. Keep a good mood and avoid being too nervous and depressed. But also to strengthen physical exercise, enhance the body's resistance.