Gynaecology & Obstetrics General 73df179a Post paum hemorrhage in a spontaneous delivery is commonly due to: September 2005, March 2013 A Traumatic B Uterine atony C Blood coagulopathy D Mixed causes High-Yield Explanation Ans. B: Uterine Atony Atonic uterus is the most common cause of PPH (80%) followed by traumatic (20%)