This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders in Menstruation, Subject name: Gynaecology & Obstetrics
Most common cause of PPH is - 
Select and explain. 
A. Atonic PPH, B. Traumatic PPH, C. Retained tissues, D. Bloodcoagulopathy
A: Atonic PPH
Answer: A: Atonic PPH 
Explanation: Ans. is 'a' i.e., Atonic PPH o Postpartum haemorrhage - Related to the amount of blood loss in excess of 500 ml following birth of the baby (WHO).Causes:# Atonic (Most common)# Traumatic# Retained tissues# Blood coagulopathy.# Atonic uterus - Atonicity of the uterus is the most common cause of postpartum haemorrhage.o Common causes of Uterine atonicity:# Grand multipara# Over - distension of the uterus# Malnutrition and anaemia# Prolonged labour# Anaesthesia# Uterine fibroid - causes imperfect retraction mechanically.