Table 1.
Main Causes of AID
| Anatomical Location or Mechanism | Causes |
|---|---|
| Digestive blood loss | Cancer or benign tumor |
| Gastric or duodenal ulcer | |
| Esophagitis | |
| Gastritis (various origins) | |
| Hiatal hernia | |
| Drugs: Nonsteroidal anti-inflammatory Anticoagulants Platelet aggregation inhibitors Corticosteroids | |
| Inflammatory bowel disease | |
| Celiac disease | |
| Diverticulosis | |
| Colon angiodysplasia | |
| Portal hypertension | |
| Genito-urinary blood loss | Cancer or benign tumor |
| Traumatic blood loss | Hemorrhagic surgery (total hip prosthesis, etc.) |
| Hematoma | |
| Iron absorption reduction | Digestive tract aging |
| Drugs: Proton pump inhibitors | |
| Short bowel syndrome | |
| Pernicious anemia | |
| Iron intake decrease | Malnutrition |
| Vegetarian diet | |
| Vegan diet | |
| Chronic alcohol | |
| Blood extraction | Blood donors |
| Hepcidin elimination abnormality | Severe renal failure |