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Causes of anemia in inflammatory bowel disease
| Common causes | Less common causes | Rare causes |
| Iron deficiency anemia | B12 deficiency | Hemolysis |
| Anemia of chronic inflammation | Folic acid deficiency | Chronic renal insufficiency |
| Medications causing B12/Folate deficiency | Myelodysplastic syndrome | |
| Medication induced aplasia | ||
| Congenital hemoglobinopathies | ||
| Protein starvation | ||
| Anemia in liver disease |
