At what stage can the placenta be delivered?

In fact, pregnant women usually give birth to babies within a few days of the due date. However, some children may be precocious. When they are in the mother's womb, the placenta matures quickly. At this time, they are ready for delivery. The maturity of the placenta is also divided into grades. So at what grade can the placenta be delivered?

Grannum placenta grading system divides placental maturity into four grades:

Grade 0 placenta: The villous plate is a straight bright line, the substance is uniform and fine particles, and the base is not visible. It usually occurs before 28 weeks of pregnancy.

Grade 1 placenta: The villous plate is a slightly undulating bright line, the placental parenchyma is slightly coarse, the echo is slightly strong, and the basal layer has not yet appeared. It usually occurs at 29-36 weeks of gestation.

Grade 2 placenta: The villous plate is notched, extending to the placental substance but not reaching the basal layer. The placental substance particles become coarser, and strong short columnar echoes appear. Irregular strong strip echoes may appear in the basal layer, parallel to the muscle wall. The gestational age is mostly 36-40 weeks.

Grade 3 placenta: The villous notch has reached the basal layer, multiple strong echo rings appear in the placental substance, small echo-free pools may appear inside, and sometimes calcification foci with enhanced reflectivity can be seen. When the placenta reaches grade III, it indicates that the placenta is mature and tends to age, which will affect the function of the placenta and is not conducive to the fetal absorption of nutrients. It depends on how many weeks pregnant you are.

The three levels represent the maturity of the placenta. Level one and level two are very normal during the whole pregnancy. It is normal no matter when you reach it. However, it must reach level two or level three by the time of delivery. Otherwise, it cannot be cesarean section if it is not mature, or drugs can be used to make it mature. There is also another one called calcification. Generally, if it enters level three very early, you should be careful of calcification.