<unk> <unk>  AE) is an obstetric complication in which the placenta has attached to the uterine wall close to or covering the cervix . It can some times occur in the latter part of the first trimester, but usually during the second or third.
Placenta previa
Placenta accreta
Preterm labour
Placental abruption
Preterm labor
Antepartum haemorrhage
Obstetrical hemorrhage
Preterm labor and birth