Does lying on the left side all the time cause the fetus to deform?

Patient's question:

No

Doctor's answer:

Hello: The best sleeping position for pregnant women is the left lateral position, especially in the later stages of pregnancy. This is because the left lateral position can reduce the pressure of the pregnant uterus on the aorta and iliac arteries, maintaining normal tension and ensuring adequate blood perfusion to the placenta. This helps prevent conditions such as lower limb edema, varicose veins, and fetal developmental issues in pregnant women.