Hello doctor, I am 25 weeks and 1 day pregnant. I had a 4D ultrasound and got the following results: The fetus weighs 776 grams, head circumference: 220, abdomen: 217, biparietal diameter: 58, transverse abdominal diameter: 64, femur length: 42, the fetus is at the 39th percentile compared to a 25-week fetus, BPD at the 6th percentile, HC at the 5th percentile.

Dear doctor, I am 38 weeks pregnant, ultrasound shows that other indicators are within normal range, fetal weight is 2.8kg, biparietal diameter is 91mm, cvd is 312mm, however the baby's femur length (FL) is only 65mm.

Fetal ultrasound is a technique that has been widely used in the medical industry since 1950. This is considered a safe method, does not affect the fetus and brings high diagnostic efficiency, accurately monitoring the development of the baby in the womb.

The 30-week fetal index helps mothers have the clearest picture of the fetus when the mother and child have gone through more than 2/3 of the pregnancy journey together. Through the indexes, mothers will have more appropriate adjustments in nutrition and health care so that their baby is fully supported.

The fetal indicators through ultrasound will accurately reflect the baby's development in the mother's womb. At 6 weeks of pregnancy, the baby is quite small but can be observed through ultrasound. So what will parents know from the results of a 6-week ultrasound?

Fetal head circumference is one of the important indicators that helps assess the level of fetal development and detect abnormalities in the baby while still in the womb. This helps reduce the risk of birth defects in children, especially microcephaly.

In addition to the fetal weight index, the femur length index is one of the necessary parameters to help mothers know the development status of the fetus in the womb. Doctors can measure the length of the femur from the 14th week of pregnancy, to the 30th week of pregnancy, what is the average femur length of the fetus?