This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Post Paum Haemorrhage (This better stop now !), Subject name: Gynaecology & Obstetrics
Most common cause of secondary postpaum hemorrhage:- 
Select and explain. 
A. Trauma, B. Atonic uterus, C. Bleeding disorders, D. Retained products of conception
D: Retained products of conception
Answer: D: Retained products of conception 
Explanation: Most common cause of secondary postpaum hemorrhage is retained tissues Secondary postpaum hemorrhage is bleeding 24 hours to 12 weeks after delivery. Causes of PPH(10 and 20) : Uterine atonicity Injury to any pa of genital tract Coagulopathy (von Willebrand's disease) Retained tissues - MCC of 20PPH