What are the symptoms of hypoxia in babies during pregnancy?

Pregnancy is a special period for women. Women need to pay special attention during pregnancy, especially in the late pregnancy. They must pay attention to counting fetal movements. The baby will suffer from hypoxia in the mother's belly, but for women who are pregnant for the first time, they may not know what symptoms will appear if the baby suffers from hypoxia during pregnancy. In fact, as long as you pay attention during pregnancy, the baby's hypoxia will give the mother a hint.

What are the symptoms of fetal hypoxia in late pregnancy

1. Changes in fetal movement. This is a normal physiological activity of the fetus. Pregnant women can feel it at 18-20 weeks of pregnancy. The fetal movement varies from fetus to fetus. Generally, static fetuses are gentler and have fewer movements. The movements of an excited fetus are large and frequent. If a originally active fetus suddenly becomes quiet, or a originally quiet fetus suddenly becomes restless, and the fetal movement is less than 10 times/12 hours or more than 40 times/12 hours, there is a possibility of fetal intrauterine hypoxia. This is because the fetus is trying to reduce oxygen consumption or because hypoxia affects the central nervous system. Pregnant women can calculate fetal movements while sitting or lying down, and count for one hour at a fixed time in the morning, noon and evening. The sum of the three times multiplied by 4 is the number of fetal movements in 12 hours. Therefore, pregnant mothers must learn how to count fetal movements so that they can better monitor the condition of the fetus.

2. Abnormal fetal heart rate. The normal fetal heart rate is regular and strong, at 120-160 beats per minute. If the fetal position is normal, it will be on the left or right side of the pregnant woman's lower abdomen, where the fetal back is located. The husband can listen to it with the help of simple instruments. Before the fetal movement decreases, the fetal heart rate becomes too frequent. If it exceeds 160 beats/minute, it is a sign of early fetal hypoxia. If the fetal movement decreases or stops, and the fetal heart rate is less than 120 beats/minute, it is a sign of late fetal hypoxia. The position for listening to the fetal heart rate should be at the place specified by the doctor, but it should be noted that if the fetal heart rate is abnormal, it should be listened to again after 20 minutes; if the fetal heart rate is fast, it should be listened to again when there is no fetal movement.

3. Growth stagnation. The growth of the fetus will also be slow after hypoxia. The growth of the fetus can be determined by measuring the height of the uterine fundus (the distance from the top of the pubic symphysis to the highest point of the uterine fundus). Under normal circumstances, the diameter of the breasts should increase by about 1 cm per week after the 28th week of pregnancy. Pregnant women can measure their blood pressure regularly at home or in the hospital. If there is no growth for two weeks, further investigation should be conducted.

Causes of fetal hypoxia

1. The most common cause of fetal hypoxia is that the umbilical cord is wrapped around a part of the body, such as the neck, hands, feet, etc.

2. Insufficient oxygen content in the mother's blood is an important reason.

3. Placental dysfunction: such as overdue pregnancy, placental development disorder (too small or too large), placental abruption, and severe placenta previa.

4. Dysfunction of the fetal cardiovascular system, such as severe congenital cardiovascular disease and intracranial hemorrhage, fetal malformation, and maternal-fetal blood type incompatibility.

5. Fetal intrauterine infection, etc.

6. Improper handling of difficult labor, prolonged labor, fetal bleeding, brain birth injury, and improper use of analgesics and anesthetics.

7. In rare cases, some fetuses will grab the umbilical cord themselves and cause hypoxia.

8. When flying on an airplane, the cabin air pressure drops sharply, causing fetal hypoxia.