It helps transport oxygen to your tissues and gives your red blood cells their red color. Iron deficiency causes most microcytic anemias. Your body needs iron to produce hemoglobin. But other.

The sideroblastic anemias are a heterogeneous group of disorders with two common features: ring sideroblasts in the bone marrow (abnormal normoblasts with excessive accumulation of iron in the mitochondria) and impaired heme biosynthesis (Bottomley, 1982; May et al, 1994).