A rare cause of lower gastrointestinal bleeding: acquired hemophilia A.

We present the case of a 71-year-old man, with medical history of hypertension, dyslipidemia and acute myocardial infarction in 2007, taking low dose of aspirin and bemiparing 3500 every 24h. He was admitted in the Urology Service with recurrent hematuria 14 days after radical prostatectomy, which ceased after continuous bladder irrigation.