The chances of placenta previa growing up

If the placenta previa is detected in the early pregnancy and in the case of urine retention, the probability of later growth is relatively high. Because urine retention makes the bladder full, it will make the placenta previa move down, so the probability of growing up will be relatively high. However, if the placenta previa is detected in the second or third trimester of pregnancy, the probability of growing up will be relatively low, and it is best to do color Doppler ultrasound examination regularly to see the placenta.