system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Most common cause of primary post-paum hemorrhage is:
assistant
The correct answer is  Ans. a. Uterine atonyPrimary Postpaum Hemorrhage:Atonic uterus: Uterine atony is most common(80% cases)Grand multiparaOverdistension of the uterus as in multiple pregnancy, hydramnios & big babyUterine fibroidPlacenta: Morbidly adherent placenta(accrete, perceta)Antepaum haemorrhage(both placenta prae & abruption)Prolong labour , Mismanaged 3rd stage labour