When the placenta one-hour after delivery still has not speared and left the upper uterine segment. This occurs when the placenta has grown into the uterine muscle. Types:-
· Placenta accreta- into muscles
· Placenta increata- deep in muscle
· Placenta percrata- through muscle
· Is usually hysterectomy
· Some times doctors can remove it as a piecemeal under general anesthesia or leave it to be absorbed.