What is the reason for the lack of obvious fetal movement at 21 weeks of pregnancy?

There should be fetal movement at 21 weeks of pregnancy, but some friends do not have obvious fetal movement at 21 weeks of pregnancy. These friends really want to know the reason. So why is there no obvious fetal movement at 21 weeks of pregnancy? Next, this article will introduce to you the relevant content about why the fetal movement is not obvious at 21 weeks of pregnancy, for your reference only. Friends who want to know why there is no obvious fetal movement at 21 weeks of pregnancy can continue reading!

Fetal movement refers to the movement of the fetus in the uterine cavity that impacts the uterine wall. After 4 months of pregnancy, that is, from the 5th month, the mother can clearly feel the movement of the fetus. The fetus stretches its hands, kicks its legs, and hits the uterine wall in the uterus. This is fetal movement. The number, speed, strength, etc. of fetal movements indicate the safety of the fetus. Fetal movement is the movement of the fetus in the mother's womb.

The 16th to 20th week of pregnancy is the period when fetal movement can just begin to be felt. At this time, the baby's movements are not very large and are not intense. Pregnant mothers usually feel that the fetal movements at this time are like fish swimming, or "gurgling" and spitting bubbles, which are a bit like the feeling of bloating, gastrointestinal motility or hunger. Inexperienced pregnant mothers often cannot distinguish them. At this time, the location of fetal movement is closer to the belly button.

Babies between 20 and 35 weeks of pregnancy are in an active period, and because they are not very big yet, there is more space for movement in the uterus, so this is the time when the baby's fetal movements are most intense. Pregnant mothers can feel the baby's various big movements such as punching, kicking, and rolling, and can even see the little hands and feet protruding from the belly. At this time, the fetus is positioned higher and closer to the stomach.

Why is there no obvious fetal movement at 21 weeks of pregnancy? If the fetal movement is less than 20 times in 12 hours, it is abnormal; if it is less than 10 times, it indicates that the fetus is in danger and is suffering from hypoxia in the uterus. If the fetal movement exceeds the normal number of times within a period of time, the fetal movement is frequent, or the fetus is restless without interruption, it is also a manifestation of intrauterine hypoxia. A significant decrease in the number of fetal movements until they stop is a sign of severe intrauterine fetal asphyxia. Abnormal fetal movement is caused by pathological conditions and functional disorders, such as a tight umbilical cord around the neck, placental dysfunction, or abnormal medication by pregnant women and adverse external stimuli, which lead to fetal hypoxia in the uterus. When the life of the fetus is threatened, the fetus will experience abnormal fetal movements, not only in frequency but also in nature. For example, strong, continuous pushing and twisting fetal movements or kicking, or even weak fetal movements, are all ominous signs. If you experience abnormal fetal movement, you should seek medical attention promptly.

The above is an introduction to why there is no obvious fetal movement at 21 weeks of pregnancy. I believe that after reading the above introduction, you already know why there is no obvious fetal movement at 21 weeks of pregnancy. In fact, for those who do not have obvious fetal movements at 21 weeks of pregnancy, if the prenatal examination is normal, it is very likely that the fetus is still small, so the fetal movements are not obvious. If there have been obvious fetal movements before but they are not obvious now, it may be caused by lack of oxygen, and you need to see a doctor immediately.