Occult gastrointestinal (GI) bleeding
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Etiology
- Malignancy
- Vascular ectasias (angiodysplasias), eg, idiopathic arteriovenous malformation (AVM), CREST syndrome, hereditary hemorrhagic telangiectasias
- Portal hypertensive gastropathy
- Peptic ulcer disease
- Ulcerated polyp
- Infections, eg, hookworm, tuberculosis (TB)
- Drugs, eg, NSAIDs, aspirin
- Inflammatory bowel disease
- Malabsorption, especially celiac sprue
- Menstrual or pregnancy-associated iron loss
- Idiopathic
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Etiology
- Malignancy
- Vascular ectasias (angiodysplasias), eg, idiopathic arteriovenous malformation (AVM), CREST syndrome, hereditary hemorrhagic telangiectasias
- Portal hypertensive gastropathy
- Peptic ulcer disease
- Ulcerated polyp
- Infections, eg, hookworm, tuberculosis (TB)
- Drugs, eg, NSAIDs, aspirin
- Inflammatory bowel disease
- Malabsorption, especially celiac sprue
- Menstrual or pregnancy-associated iron loss
- Idiopathic
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