First of all, ultrasound can clearly show the position of cervix and placenta, and determine the type of placenta previa according to their relationship, but we must pay attention to the number of weeks of pregnancy in the diagnosis of placenta previa.

Second, the placenta occupies half of the uterine wall in the second trimester of pregnancy, so the placenta has more opportunities to approach or cover the internal cervix; In the third trimester, the area of placenta decreased to 1/3 or 1/4. The formation and prolongation of the lower uterine segment increases the distance between the inner cervix and the edge of the placenta, and the placenta can change its original position with the upward movement of the uterine body. So your ultrasound report can only be diagnosed as placenta previa, not placenta previa.

Third, according to your report, the fetus is still young, and the earliest diagnosis of placenta previa will take 28 weeks. You can check B-ultrasound regularly according to the doctor's advice and do a good job of monitoring. In addition, psychological attention should also be paid. After all, obstetrics can cause bleeding in the third trimester, which is also an abnormal situation. Good pregnancy!