DIFFERENTIAL DIAGNOSIS OF IRON DEFICIENCY ANEMIA CAUSING MICROCYTIC ANEMIA

Differential diagnosis of iron deficiency anemia causing microcytic anemia are : 
-deferoxamine over treatment 
-insufficient supply of iron 
-loss of iron ( ulcer, neoplastic, hemorrhoids, anglodysplasia, genital bleeding in women,hemoglobinuria, paroxysmal nocturnal hemosiderinemia, artificial cardiac valves, loss of blood from nose or oropharynx, surgical post operative, or traumatic blood loss and blood loss with Osler's disease)
-insufficient resorption of iron  ( enteritis, intestinal tuberculosis, inflammatory bowel disease, worm infestation, excretory pancreatic insufficiency, non tropical sprue, chronic diarrhea, gastric or intestinal resection)
-increase requirement of iron ( pregnancy, growth, lactation period or  hereditary )