This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Placenta - Types and their complications, Subject name: Gynaecology & Obstetrics
Compared with a normally shaped placenta, which complication of third-stage labor is more common with a succenturiate lobe? 
Select and explain. 
A. Cord avulsion, B. Uterine inversion, C. Chorioamnionitis, D. Retained placenta
D: Retained placenta
Answer: D: Retained placenta 
Explanation: Succenturiate lobe - The accessory lobe may sometimes be retained in the uterus after delivery and may cause serious hemorrhage (Secondary PPH) which is the most common complication. The treatment is removal of the lobe with a gentle curettage.