Signs and symptoms may include: * Pale appearance * Rapid heart rate * Fatigue
Pure red cell aplasia
Paroxysmal cold hemoglobinuria
Paroxysmal nocturnal hemoglobinuria
Hereditary spherocytosis
Hereditary persistence of fetal hemoglobin
Congenital hypoplastic anemia
Twin anemia-polycythemia sequence
Congenital dyserythropoietic anemia