The difference between anterior and posterior walled fetuses is the location where the fertilized egg is deposited; there is no other difference. Pregnant women are required to follow the doctor’s instructions for regular checkups in order to keep track of the growth and development of the fetus. The anterior and posterior walls refer to the location of attachment of the placenta, which may be attached to the anterior wall, posterior wall, lateral wall, or bottom of the uterus, all of which are related to the location of the fertilized egg’s bed. Usually, whether the fetus is attached to the anterior or posterior wall of the uterus, if the growth and development of the fetus is not significantly different from that of a normal fetus, and the growth of the fetus, as judged by ultrasound, coincides with the time of menopause, it indicates that the fetus is developing normally and there is no need to worry. Therefore, during pregnancy, pregnant women need to ensure sufficient rest time and do not overwork. If you experience any discomfort, such as abdominal pain, vaginal bleeding, etc., you need to go to a regular hospital in time.