How long does it take for the dot-shaped embryo to have a fetal heartbeat?

Dot-shaped embryo buds are a phenomenon that occurs in early pregnancy. After the dot-like embryo bud appears for a period of time, the fetal heartbeat will also appear. Generally speaking, the fetal heartbeat can be detected in the seventh week of pregnancy. Of course, in the early stages of pregnancy, pregnant women need to do fetal heart monitoring, so that they can check for abnormal conditions in the baby and take certain care measures in a timely manner. Next, I will introduce you to the relevant knowledge about fetal heart rate!

1. How long does it take for a fetal heart to grow after a dot-shaped embryo bud appears?

After the sperm and egg combine to form a fertilized egg, the implanted fertilized egg slowly divides into a multicellular gestational sac. After more than thirty days of pregnancy, the primitive cells differentiate and slowly form a fetal bud, which further develops into a fetal heart. This is the process of fetal formation. Usually, the period from three weeks of gestation to the first month of pregnancy is called the embryonic stage. At this time, blood flow signals with heart fluctuations can be seen during B-ultrasound or color ultrasound examinations. Further growth and development will form a fetus.

So, how long will it take for a fetal heart to grow after the dot-shaped embryo bud appears? The fetal heartbeat is the sound of the fetus's heartbeat in the uterus. It has a clear tone and a regular rhythm. By listening to the fetal heartbeat, you can understand the health of the fetus. Generally, around 7 weeks of pregnancy, the fetal heartbeat can be seen with B-ultrasound equipment; around 12 weeks of pregnancy, the fetal heartbeat can be detected with a Doppler fetal heart monitor. Before the baby is born, fetal heartbeat is the only bridge between the baby and the outside world and is an important indicator of fetal health.

Second, the time of fetal heart monitoring

After the fetal heartbeat appears, fetal heart monitoring can be performed to check the development of the fetal heartbeat. The normal fetal heart rate is 120-160 beats per minute and should sound regular and without gaps. If the fetus moves, the fetal heart rate will slightly increase. If the fetal heart beats more than 160 times per minute, or less than 120 times per minute, or the heartbeat is irregular, sometimes fast, sometimes slow, sometimes beat and stop, with gaps in between, etc., it is abnormal.

Starting time: The fetal heart is formed at the 8th week of pregnancy, and B-ultrasound can detect the fetal heart beat. At the 20th week of pregnancy, the fetal heartbeat can be clearly heard from the pregnant woman's abdomen using a stethoscope, and the frequency and strength of the fetal heartbeat can be determined, thereby understanding the growth and development of the fetus in the uterus.

3. Normal and abnormal fetal heart rate

Normal fetal heart rate: The normal fetal heart rate is 120-160 beats/minute, with a regular rhythm and moderate strength, like the "ticking" sound of a clock. The fetal heart rate may increase by 10 to 20 beats per minute when the fetus moves. If the heart rate is continuously higher than 160 times/minute or lower than 110 times/minute, it is abnormal.

Abnormal fetal heart rate: Initially, the fetal heart rate will increase significantly, exceeding 160 beats/minute, but the heart sounds will weaken. If the cause of the disease is not eliminated in time, the fetal heart rate will slow down, below 110/min, the heart sounds will become weaker or even disappear - the fetus will die.