Patient's question:
Placental marginal vein sinus rupture bleeding queryDoctor's answer:
Hello, the retroplacental vein (also known as the placental venous sinus) is a low-echo tubular structure arranged along the uterine wall beneath the basal plate of the placenta, caused by venous stasis, and should be differentiated from retroplacental hematoma. 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, and the maternal surface is connected to the uterus. The placental venous sinus refers to the liquid dark areas at the edge of the placenta. Generally, it poses no harm to either the mother or the fetus. There is no need to worry too much. Also, don't be afraid. As the pregnancy ends, it will naturally disappear.