<prompt> Commonest cause of post partum haemorrhage isAtonic uterusTraumaticCombination of atonic and traumaticBlood coagulation disorders  <response>: Atonic Uterus 411-Dutta 6th Atonic uterus 80 is the commonest cause of PPH Other causes of PPH are - Traumatic 20, combination of atonic and traumatic causes, Blood coagulation disordes The conditions where such disorders may occur are abruptioplacentae. Jaundice in pregnancy thrombocytopenia purpura, HELLP syndrome or in IVD. Minimum duration between onset of symptoms and death is seen in PPH Secondary PPH usually occur between 8th to 14th day of deliverySurgical method to control PPHa Ligation of ascending branch of uterine arteryb Ligation of ovarian uterine artery anastomosisc Ligation of anterior division of internal iliac arteryd B- Lynch brace suture haemostatic suturinge Angiographic arterial embolisation bleeding vessels 