Patient's question:
Placental marginal venous sinus rupture bleeding queryDoctor's answer:
Hello, the posterior placental veins (also known as placental venous sinuses) are low-echo tubular structures arranged along the uterine wall beneath the basal plate of the placenta, caused by venous stasis, and should be differentiated from placental retrohematomas. The ultrasound image of a normal placenta: The placenta appears homogeneous in echo, and can be identified from the 8th week of pregnancy. The fetal surface of the placenta is covered with smooth amnion, while the maternal surface is connected to the uterus. The placental venous sinuses refer to the liquid-filled dark areas at the edge of the placenta. Generally, they pose no harm to either the mother or the baby. There is no need to worry too much. Don't be scared either, as they naturally disappear with the end of pregnancy.