• Most common cause of post-delivery bleeding is uterine atony (especially in setting of prolonged, difficult delivery), but the uterine fundus would be described as soft and boggy rather than firm; therefore the next most common cause given that the placenta has been delivered would be trauma (especially with difficult delivery)
• Causes of post-delivery bleeding is 4 T’s: (1) aTony (most common) (2) Trauma (3) Thrombin (coagulopathy) (4) Tissue (retained placenta, etc.)

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