Differences between anterior and posterior placenta

The main differences between anterior and posterior placenta are reflected in the following aspects:

1. Different positions: An anterior placenta refers to the placenta attaching to the uterine wall on the side facing the abdomen, while a posterior placenta refers to the placenta attaching to the uterine wall on the side facing the spine.

2. Fetal movement perception: Pregnant women with an anterior placenta may generally feel fetal movements more easily during pregnancy because the fetal activity directly pushes against the uterine wall, stimulating the mother's skin and nerves, making fetal movements more noticeable. Pregnant women with a posterior placenta may perceive fewer fetal movements, but this does not indicate any problem with the fetus—it is simply that the fetal movements are somewhat cushioned by the placenta and uterine wall, making them less intense compared to an anterior placenta.

3. Physical condition and sensation: With a posterior placenta, the fetus is positioned relatively further back, which may cause pregnant women to feel more fatigue during pregnancy, as the fetus may press against the spine, causing backaches and discomfort. In contrast, women with an anterior placenta may show a more visible bump earlier, but usually experience fewer discomforts.

4. Risk differences: From a risk perspective, compared to a posterior placenta, an anterior placenta is more prone to abnormalities such as placenta previa, which may affect the health of both the mother and the fetus.