What Does a Small Biparietal Diameter Mean?

For instance, if your baby's BPD measurements is smaller than usual, that could be a sign of an intrauterine growth restriction or that your baby's head is flatter than usual. If your baby's BPD measurement is larger than expected, it could signal that a health issue, such as gestational diabetes.

Is Biparietal diameter accurate?

Interpretation. BPD has been shown to be accurate in predicting gestational age from 14 to 20 weeks 2. The variability increases after this time.

What BPD mean in pregnancy?

BPD (biparietal diameter), the diameter of your baby's head. HC (head circumference), the length going around your baby's head. CRL (crown-rump length), the length from the top of the head to your baby's bottom, measurement taken in the first trimester.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.