RETAINED PLACENTA
Retained placenta causes 5% of excessive postpartum bleeding.
Risk Factors. Accessory placental lobe (most common) and abnormal
trophoblastic uterine invasion (e.g., cervix, vagina, perineum).
Clinical Findings. Missing placental cotyledons in the presence of a contracted
uterus.
Management. Manual removal or uterine curettage under ultrasound guidance.