Fetal growth restriction

Fetal growth restriction (FGR), also known as placental dysfunction syndrome or fetal dystrophy syndrome, refers to those whose fetal weight is less than the 10th percentile of their average gestational age or below their average weight. 2 standard deviations. Fetal growth and development are closely related to a variety of factors, such as the external environment of the pregnant woman, the pathophysiology of the pregnant woman's body, the placenta and umbilical cord, the internal environment of the fetus, and the condition of the sperm before pregnancy. These factors, such as affecting the decrease in the number of fetal cells or abnormal cell size, can cause small or large children.