Why is the Fetal Biparietal Diameter Smaller than Normal, While the Head Circumference Is Normal? What Should I Do?

The smaller biparietal diameter of the baby is not a big problem. First, recalculate the expected date of delivery to see if it is accurate. Then, perform a four-dimensional ultrasound examination to check if the fetal position is abnormal or if there are measurement errors. After that, screen for any malformations. It is recommended to eat more fruits and vegetables to ensure sufficient nutrition.

The biparietal diameter of the fetus, also known as the head transverse diameter, refers to the widest part of the fetus's head from left to right. The size of the biparietal diameter of the fetus is mainly related to its development. A normally developed fetus will have a moderate biparietal diameter. If there is insufficient nutrient intake, the biparietal diameter of the fetus may be smaller.

1. Strengthening Nutrition: Pregnant women should pay attention to their daily diet and ensure sufficient nutrition to meet the needs of the fetus.

2. Exercise: In addition to strengthening nutrition, pregnant women should also perform some exercises to promote the absorption of nutrients in the gastrointestinal tract and improve their physical condition, which is helpful for improving the smaller biparietal diameter of the fetus.

3. Re-examination: After the biparietal diameter of the fetus is found to be smaller, it is necessary to identify the causes of this condition. Pregnant women should undergo regular check-ups to monitor the development of the fetus.

4. Emotional Management: Emotions have a significant impact on the fetus and are closely related to its health and growth. Therefore, pregnant women should maintain a good mood and avoid negative emotions such as anger and depression.