Abstract
The rare hemorrhagic disorder known as acquired hemophilia A (AHA) is brought on by the spontaneous development of autoantibodies against coagulation factor VIII (FVIII). It may be secondary to autoimmune diseases or cancers, or it may be idiopathic. Less than 10% of cases may have an infection as a secondary cause. We present the case of a 90-year-old anemic woman who was admitted to the hospital. She contracted a urinary tract infection (UTI) while in the hospital, and her urine took on a distinct purple hue. She had poor hemorrhagic manifestations and a prolonged partial thromboplastin time. After ruling out autoimmune and neoplastic causes, we diagnosed AHA as a result of a UTI caused by Enterococcus faecalis.
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