The fetal heart rate stopped for a few days and then resumed

What women are most concerned about after pregnancy is the development of the fetus. In daily life, many women have experienced fetal arrest after pregnancy. Some pregnant women can clearly feel the baby's heartbeat, but suddenly the fetal heartbeat stops again. After a few days, the fetal heartbeat recovers. This situation often makes pregnant women nervous. What is going on when the fetal heartbeat stops for a few days and then recovers?

If the fetal heart rate stops for a few days and then resumes, it is most likely caused by fetal hypoxia, and it cannot be determined that the fetus has stopped developing at this time. If embryonic arrest occurs, all pregnancy reactions of the pregnant mother will gradually disappear. First of all, there will be no more early pregnancy reactions such as nausea and vomiting, and the feeling of breast swelling will also be reduced. Then there will be vaginal bleeding, often dark red bloody leucorrhea. Finally, there may be lower abdominal pain and expulsion of the embryo. The above symptoms vary from person to person. Some people may not even show any signs, but may directly experience abdominal pain and then miscarriage, or the embryo may stop developing without any symptoms and be discovered through routine B-ultrasound examination.

Causes of fetal heart arrest

Chromosomal reasons, placental problems, maternal and embryonic immune reasons, certain maternal diseases, endocrine reasons, excessive fatigue, etc. may all cause fetal growth retardation. Abortion may be due to one aspect, but in many cases it is due to multiple reasons.

The most common ones are chromosomal abnormalities, which lead to developmental abnormalities; exposure to toxic substances, which cause fetal malformations; exposure to radiation or large amounts of electromagnetic radiation; taking drugs that are prohibited for pregnant women; and maternal abnormalities, such as the uterus. Therefore, if the number of miscarriages is high, it will cause the endometrium to become thinner, leading to abnormal placental attachment and development, etc.

How long does it take to hear a heartbeat during pregnancy?

Three or four weeks into pregnancy, the fetus' heart begins beating. It was slow at first, only sixty or seventy times a minute. The heartbeat at this time is very weak, and during B-ultrasound examination, the fetal heartbeat can be displayed on the ultrasound screen. Generally, the fetal heartbeat can be heard near the midline below the navel. The position of the fetal heartbeat will change as the fetus grows and the fetal position changes. Because most fetal heart sounds are transmitted from the fetal back and can be heard most clearly near the shoulder blades on the fetal back, the fetal head in head position can be listened to on both sides of the lower abdomen, the fetal head in breech position can be listened to on both sides of the upper abdomen, and the fetal head in lateral position can be listened to at the midline of the abdomen above or below the navel.

Around 17-20 weeks, the fetal heartbeat can be heard in the abdomen using a regular stethoscope. The normal fetal heart rate is regular and strong, like the ticking of a clock, at 120-160 beats/minute. If it is <120 beats/minute or >160 beats/minute, you can listen to it again at intervals of 10-20 minutes. If it is still abnormal, it indicates fetal intrauterine hypoxia. If the fetal heart rate is within the abnormal range and is accompanied by irregular fetal heart rhythm, it indicates that the fetal hypoxia is more serious.

If the fetal heart rate remains <120/min or >160/min for more than 10 minutes, it indicates that the fetal heart rate is abnormal. The application of fetal heart monitors has become quite popular. During fetal heart monitoring, if an abnormality is found in the fetal heart graph, it is often used to indicate fetal heart abnormalities. In most cases, abnormal fetal heart rate means that the fetus is suffering from hypoxia in the uterus. The more severe the abnormal fetal heart rate, the more severe the fetal hypoxia. However, not all abnormal fetal heart rate is caused by hypoxia.