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Placenta previa refers to the position where the placenta implants in the uterine wall close to the internal os of the cervix. Generally, it can be divided into four levels: the first level is that the placenta is within 2 cm from the internal os of the cervix, and the second level is that the placenta is in the cervix. The edge of the internal os, these two grades belong to the light (Minor); while the third grade refers to the placenta covering part of the internal cervical os, and the fourth grade has completely covered the internal cervical os, these two grades belong to the heavy (Major).<\/p>\n\n\n\n
Many pregnant women also find that the "fetal position" is low during the early pregnancy checkup. This is not necessarily a placenta previa, because under normal circumstances, the placenta will naturally move away from the internal os of the cervix as the number of weeks of pregnancy increases. Therefore, generally after 32 weeks of pregnancy, ultrasound can be used to determine whether there is placenta previa.<\/p>\n\n\n\n
For pregnant women with placenta previa, as the cervix begins to dilate in the late pregnancy, the placental blood vessels may rupture and cause vaginal bleeding. In severe cases, it may even lead to shock or even death. Therefore, we have to be vigilant! If a pregnant woman with placenta previa experiences bleeding, she must seek medical attention as soon as possible, and re-bleeding is also common and may become more serious. Doctors generally recommend cesarean delivery to pregnant women with placenta previa, and there is a risk of massive bleeding after delivery. In critical cases, hysterectomy is required to save life.<\/p>\n\n\n\n
So is it safe for expectant mothers to stay in bed all the time? It depends on individual circumstances. If the doctor thinks the condition is stable, the pregnant woman only needs to avoid exertion and reduce activities; , must be admitted to the hospital as soon as possible to ensure the safety of pregnant women and fetuses.<\/p>\n\n\n\n
Due to the risk of placenta previa, prenatal examination is very important. Doctors can use ultrasound or MRI scan to understand the degree of placenta previa and whether there is placenta accreta, and then formulate a suitable miscarriage and delivery plan . Pregnant women should not worry too much. As long as they, their family members and doctors closely monitor their physical condition, the risk can be minimized. <\/p>\n\n\n\n
Obstetrics and Gynecology Specialist Dr. Chan Wing Yin<\/p>\n\n\n\n