How to determine if a fetus has long or short legs
Fetal leg length can generally be assessed through ultrasound examination, with specific analysis as follows:
During pregnancy, an ultrasound can measure the fetal femur length and gestational age to determine whether the legs are long or short. However, since femur length varies with different gestational weeks, it cannot be generalized. Taking 22 weeks as an example, the average femur length at 22 weeks of gestation is 3.82±0.47 cm. Values within this normal range are considered typical; higher values indicate longer legs, while lower values suggest shorter legs.
If an ultrasound during pregnancy reveals any fetal abnormalities, it is recommended to promptly follow appropriate management under the guidance of an obstetrician-gynecologist to prevent serious complications.