The placenta does not change from the anterior to the posterior wall, and its position can be essentially fixed after the fertilized egg is deposited.
During the pregnancy stage, the placenta is an important appendage of the fetus, providing a place for the exchange of blood between the fetus and the mother. During an ultrasound examination, the position of the placenta can be observed, and it will be categorized into anterior wall placenta and posterior wall placenta depending on the location of the placental attachment.
Under normal circumstances, the location of the placenta is fixed from the moment the fertilized egg is deposited, some pregnant women have an anterior wall, and some have a posterior wall, and the location of the placenta does not change over time.
It is recommended that pregnant women should have regular checkups during pregnancy to understand the intrauterine condition of the fetus and the placenta and amniotic fluid. At the same time to maintain a relaxed mood, do not be overly anxious and nervous.