If your baby’s biparietal diameter is small but within the range, you don’t need to worry too much, and pay attention to maintaining a balanced nutrition during pregnancy and regular checkups.
Biparietal diameter is the distance between the two parietal bulges of the fetus, which can be used as an indicator to evaluate the growth and development of the fetus. Generally speaking, the biparietal diameter in ultrasound examination is within the range of the reference value of the pregnancy week, do not worry too much. Calculating the gestational week using the last menstrual period may not be accurate enough, which will affect the doctor’s judgment of whether the biparietal diameter value is normal or not. Biparietal diameter is also related to the head size of the fetus.
If the biparietal diameter of the fetus is small but within the range, the pregnant woman should pay attention to ensure sufficient nutritional supply, eat more fish, chicken, eggs, milk, soy products, etc. in moderation, and take calcium and vitamin D supplements to promote the development of the fetus’s bones and teeth.
Fetal ultrasound can be performed again at an interval of 2 weeks to 4 weeks for evaluation by the doctor. As long as the growth rate of biparietal diameter, femur length and abdominal circumference is normal, there is usually no need to worry too much.