Symptomatic Acquired Haemophilia Due to Circulating Antibodies Against Both Factor VIII and IX in a Non-haemophiliac Patient

Abstract

Acquired haemophilia is a very rare condition, occurring in less than 2 per million populations. This condition is caused commonly by acquired antibodies against factor VIII and rarely by antibodies against factor IX. Here we describe an extremely rare presentation of idiopathic acquired haemophilia in an otherwise healthy male patient, caused by simultaneous occurrence of circulating antibodies against both factor VIII and IX.