what trimester does Placenta Previa occur
Some of the problems with the placenta that can take place during the third trimester include placenta previa, placental abruption, and partial placental separation. Placenta previa is a common third trimester problem with the placenta.In this condition the placenta blocks the cervix. This will often create bleeding.In most cases, this also will create trouble with delivery, often requiring that the baby be delivered via Cesarean section.his can occur at any time during a pregnancy, although most of the time placental abruption will happen during the third trimester. It is extremely rare for placenta separation to occur at all in the first trimester, or the beginning of the second trimester.