Acquired factor VIII inhibitors as a cause of primary post-partum haemorrhage.

Acquired haemophilia was diagnosed following detailed investigation of a post-partum haemorrhage unresponsive to standard management. Circulating factor VIII inhibitors and low factor VIII levels were detected and intravenous DDAVP treatment lead to a resolution of symptoms. This case highlights the importance of haematological investigations in persisting post-partum haemorrhage.