What is calcification of the placenta or lack of fetal growth?

It is a disorder that accompanies pregnancy and can be treated… It is a weak pregnancy growth caused by the fatigue and premature aging of the placenta. God Almighty created the placenta to live for 9 months, after which the blood vessels in it begin to calcify and block because its function is almost finished.

But sometimes the placenta gets old prematurely, causing it to not perform its function well... At first, the transfer of food to the fetus decreases, so the fetus directs food to the head because the brain is the most important organ in the body, and food is reduced in the rest of the body, so the head grows normally and the abdomen does not grow to the same degree, causing a lack of asymmetric growth Between the head and the abdomen… In advanced stages, the fluid surrounding the fetus, i.e., the amniotic fluid, decreases because the tired placenta stops secreting it, and then the amount of oxygen that reaches the fetus decreases, and the fetus suffers from a lack of oxygen inside the uterus. In very advanced stages, the fetus may die unfortunately……
Most of the cases are still unknown, it may be an immune rejection from the mother’s body to the fetus, and it may be an increase in blood clotting … and certainly all the mother’s diseases such as heart and kidney diseases, high pressure, smoking and chronic lung diseases such as asthma and others, all of these diseases reduce the performance of the placenta and cause a lack of growth The fetus, perhaps, to protect the mother's body, which is the origin, from the depletion of the fetus, which is the offspring, of its resources.