10 Peptic Ulcer Symptoms
Reviewed: Dr. Mera
Symptom #8: Melena
Melena refers to dark, tarry, and black feces that are associated with upper gastrointestinal bleeding. The feces can have a characteristic and strong odor from the hemoglobin in the blood, which has been altered by intestinal bacteria and digestive enzymes. The most common cause of melena is peptic ulcer disease. It can also occur as a complication of anticoagulant medications, malignant tumors, hemophilia, and Mallory-Weiss syndrome.
Iron supplements can also cause a grayish-black stool that should be distinguished from melena. Melena is a medical emergency, and urgent care is needed to rule out serious, life-threatening causes. Treatment will depend on the underlying cause.
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