This is rare. This is the morbid adherenece of the placenta to the uterus. This is more likely after a previous caesarian section.
If there is placental infiltration of the myometrium then this condition is termed 'placenta increta' whereas if the placental infiltration reaches the serosa then this condition is termed 'placenta percreta'.
This condition predisposes to postpartum haemorrhage. In some cases a hysterectomy may be necessary.
Last reviewed 01/2018