Sickle cell disease

Thalassemia syndromes

Hereditary spherocytosis and stomatocytosis

Pyruvate kinase deficiency

Paroxysmal nocturnal hemoglobinuria

Microangiopathic hemolytic anemias

ABO mismatch transfusion reaction

Paroxysmal cold hemoglobinuria

Severe idiopathic autoimmune hemolytic anemia

Infection-induced anemia

Malaria

Cardiopulmonary bypass

Mechanical heart-valve–induced anemia

Chemical-induced anemias