What is the reason for the absence of fetal heartbeat and fetal bud?

Expectant mothers pay special attention to the physical condition of the fetus in their belly, especially the very important position of the fetal embryo and fetal heart rate, which they are more concerned about. The fetal bud and fetal heart rate are very important positions for him. If this happens, it means that the fetus may not be able to conceive again. What causes no fetal heartbeat?

If a woman who has just become pregnant has not yet reached 8-12 weeks of pregnancy, and sometimes goes to the hospital for a check-up and is told that there is a gestational sac but no fetal heartbeat or fetal bud, don't worry at first, because this situation is because the pregnancy time is too early, the fetal bud and fetal heartbeat have not yet fully appeared, the examination time is too early, the fetal bud, fetal heartbeat and fetal heartbeat are very small or have not yet developed well, so they cannot be seen. In addition, some people will have this situation due to late implantation. Rest for a while and go for a follow-up visit. There will be a fetal heartbeat at 60 days.

The embryonic development process has a practical whole process. The gestational sac is produced in 30-40 days, the embryonic bud and fetal heart rate are produced in 40-50 days, and the fetal heartbeat is produced in the embryonic bud and fetal heart rate until 50-60 days. For this reason, if a pregnant woman goes for a check-up after 60 days of pregnancy, if there is still only a gestational sac, but no embryonic bud, fetal heartbeat, or fetal heartbeat, then it is possible that the embryo has arrested. There are various reasons for pregnancy termination, such as incomplete development of test tube embryos, incomplete embryo development, poor quality of male semen, and abnormal sperm. In addition, some external factors, such as viral infection during pregnancy, contact with radioactive elements, taking medications that are prohibited during pregnancy, high temperature, excessive stress, etc. may also cause fetal arrest.

If a pregnant woman goes to the hospital for a check-up and finds a gestational sac but no fetal heartbeat or fetal bud, don't be anxious and wait a week before going for a follow-up ultrasound. If a fetal bud, fetal heartbeat and fetal heartbeat are found, you can continue to get pregnant and receive fetal maintenance treatment at the same time. If the embryo, fetal heart rate and fetal heartbeat are still absent, it must be resolved as soon as possible to avoid affecting the pregnant woman and minimize the adverse conditions.

How long after pregnancy does the fetal heartbeat appear?

Three or four weeks into pregnancy, the fetus' heart begins to beat. It was slow at first, only sixty or seventy times a minute. The heart beats are very weak at this time, and during B-ultrasound examination, the fetal heartbeat can be displayed on the B-ultrasound screen.

After 8 weeks of pregnancy, the fetal heartbeat can reach about 180 beats per minute. After 14 weeks of pregnancy, the fetal heart rate decreases to around 140 beats per minute, and then maintains between 120 and 160 beats per minute. In addition to using a stethoscope to listen to the fetal heart rate directly, doctors can also use a Doppler fetal heartbeat detector to measure the fetal heart rate.

Around four months of pregnancy, the fetal heartbeat can be heard around the midline below the navel. Later, the position of the fetal heartbeat changes with the growth and development of the fetus and the change of fetal position. Because fetal heart sounds are mostly transmitted from the fetal back and can be heard most clearly near the shoulder bones on the fetal back, the head of a fetus in head position can be listened to on both sides of the lower abdomen, the head of a fetus in breech position can be listened to on both sides of the upper abdomen, and the lateral position can be listened to at the midline of the abdomen above or below the navel.