What is the placental blood pool?

During pregnancy, pregnant women should undergo various prenatal examinations regularly to observe the development of the fetus through various examination methods. Some pregnant women were found to have placental blood pooling during ultrasound examinations. For pregnant women, such abnormalities are definitely very worrying. So, what is the placental blood pool? Let’s take a look at the reasons below.

Placental sinusoids refer to the local vascular plexus of the placenta. Because they do not affect the blood supply to the fetus and have no clinical symptoms, placental sinusoids generally do not have a very special clinical significance. Most of the sinuses are a network of blood vessels arranged radially with the veins as the center. There is arterial blood and venous blood in the sinusoids. If the blood sinuses are relatively large and placental abruption occurs, it should be taken seriously.

If the blood sinusoids are relatively small, it will not affect the fetus or pregnant women. The impact of blood sinusoids on the mother mainly depends on the size of the blood sinusoids and whether the mother has symptoms of placental abruption and vaginal bleeding. Pregnant women should pay attention to rest, avoid making large movements or overwork, remember to have regular pregnancy check-ups, and maintain a happy mood. If a pregnant woman experiences other adverse reactions, she should go to the hospital for further examination in time to avoid unexpected problems in the development of the fetus or the pregnant woman's body.

Effects of placental sinusoids on the fetus

The impact of placental sinusoids on the fetus should be determined according to the size of the sinusoids, as well as the specific bleeding site and bleeding time.

If the sinusoids are not large and do not tend to grow larger, they will have no obvious effect on fetal development. However, if the area of ​​the blood sinus is relatively large, it will affect the exchange of villous blood flow, resulting in poor material exchange between the placenta and fetus.

In addition, the size and location of the blood sinus also have a certain impact on the fetus. It may cause the placenta to implant into the uterine myometrium, resulting in incomplete placental detachment and heavy bleeding.

Effects on pregnant women:

Placental sinusoids can cause postpartum hemorrhage in pregnant women. After giving birth, pregnant women are prone to postpartum hemorrhage because the contraction force of the lower segment of the uterus is poor, the placenta is not easy to detach, and the detached blood sinuses are not easy to close. At the same time, the cervix or lower segment of the uterus where the placenta is attached is rich in blood vessels and has fragile tissue, which is also a cause of bleeding.

How to deal with placental sinusitis

Pregnant women with smaller placental sinusoids do not need to worry too much. Just pay more attention to them and the sinusoids will gradually disappear on their own. If the blood sinus is too large, it will be difficult for it to disappear on its own. In this case, pregnant women should rest in bed more and try to reduce stimulation to the uterus. In addition, if the sinuses are gradually enlarging and occur during an unhealthy delivery cycle, the pregnancy needs to be ended early.