Abstract
Autoimmune hemolytic anemia (AIHA) is caused by damaged red blood cells due to auto-antibodies targeting its membrane proteins. The heterogeneous group of diseases is divided into two types depending on the thermal amplitude of autoantibodies: warm and cold AIHA. Cold AIHA includes cold agglutin disease and paroxysmal nocturnal hemoglobinuria. AIHA is also divided into primary and secondary AIHA depending on its etiology. Recent advances in understanding the pathogenesis have revealed that AIHA brings not only anemia but also thromboembolic risk or impaired quality of life (QOL). This review describes its pathogenesis, diagnostic approach, and treatment strategies based on the latest information.
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