Causes of small biparietal diameter of fetus at 33 weeks of pregnancy

It is necessary to have regular prenatal examination during pregnancy. First, it can ensure the health of pregnant mothers. Second, prenatal examination can show the development of the fetus in the abdomen. We all know that pregnancy usually takes ten months, that is, delivery will take place within 38-42 weeks, so what is the standard of baby development at 33 weeks of pregnancy? The following are the standard values of fetal development at 33 weeks of pregnancy. Let's have a look.

Standard value of fetal development at 33 weeks' gestation

The fetus is about 465438 0.5 cm long and weighs 2000 g, with an average biparietal diameter of 8.50 0.47 cm, an average abdominal circumference of 27.78 2.30 cm and a femur length of 6.42 0.46 cm.

The baby's appearance is very similar to that when he was born. Now his skull is very soft, and there are gaps between each skull, which is to prepare for the baby's head to pass through the vagina smoothly during childbirth. But the bones in other parts of the fetal body become very strong. You should pay attention to the position of the fetal head at this time. Whether the fetal position is normal is directly related to whether you can give birth normally.

At this time, the baby's skin is not red or wrinkled. His skin used to be red, but now it turns pink, and the fat continues to accumulate, so now you will see a fat doll carved in powder.

Diet of pregnant women at 33 weeks' gestation

1, nutritious diet

This week, the baby will gradually descend to the pelvic cavity. At this time, the pregnant mother's stomach will feel more comfortable and her food intake will increase. Pregnant mothers should eat some nutritious marine food. Marine animal food is called high-priced nutrition by nutritionists. They are rich in fat, cholesterol, protein, vitamin A and vitamin D, which are closely related to the normal development of eyes, skin, teeth and bones.

2. Nutritional supplement

In the third trimester, more attention should be paid to the intake of vitamin AD. Vitamin D can promote the absorption of calcium, which is closely related to the physical and intellectual development of the fetus. More importantly, this stage is a critical period for the baby's lung development. At this stage, the baby's lungs have matured and can adapt to the breathing after birth, so it is very important for the baby's health after birth. Foreign studies have shown that the level of vitamin A during pregnancy is related to the development of infants' lungs.

The above data are related to the standard value of fetal development at 33 weeks of pregnancy, but the data are for reference only. First of all, we must ensure the baby's health. At this time, pregnant mothers can start prenatal education and prepare for possible premature delivery. Don't be in a hurry and don't know what to do.