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Copyright ©2010 Baishideng.
World J Gastroenterol. Jun 14, 2010; 16(22): 2720-2725
Published online Jun 14, 2010. doi: 10.3748/wjg.v16.i22.2720
Table 1 Causes of iron deficiency anemia stemming from the GI tract
Decreased iron uptakeIncreased iron loss (bleeding into GI tract)
Celiac sprueEsophagus (esophagitis and cancer)
GiardiasisStomach (ulcer, gastritis, cancer, vascular lesions)
Achlorhydria (due to atrophic gastritis, H. pylori infection…)Small bowel (vascular lesions)
Gastrojejunostomy and other surgical techniques bypassing the duodenum where iron absorption is maximalLarge bowel (cancer, angioectasias, adenoma, colitis)
Short bowel syndrome