By Mayo Clinic Staff

Vomiting blood may be caused by:

  1. Acute liver failure
  2. Alcohol use disorder
  3. Aspirin
  4. Benign tumors of the stomach or esophagus
  5. Cirrhosis (scarring of the liver)
  6. Defects in gastrointestinal tract blood vessels
  7. Dieulafoy's lesion (an artery that protrudes through the stomach wall)
  8. Duodenitis (inflammation in the first part of the small intestine)
  9. Esophageal cancer
  10. Esophageal varices (enlarged veins in the esophagus)
  11. Esophagitis (inflammation of the esophagus)
  12. Gastric erosions (breakdown of tissue lining the stomach)
  13. Gastric varices (enlarged veins in the stomach)
  14. Gastritis (inflammation of the stomach)
  15. Mallory-Weiss tear (tear in the esophagus associated with pressure caused by vomiting or coughing)
  16. Nonsteroidal anti-inflammatory drugs
  17. Pancreatic cancer
  18. Pancreatitis (pancreas inflammation)
  19. Peptic ulcer
  20. Portal hypertension (high blood pressure in the portal vein)
  21. Prolonged or vigorous vomiting
  22. Stomach cancer

In infants and young children, vomiting blood may also result from:

  1. Birth defects
  2. Blood clotting disorders
  3. Milk allergy
  4. Swallowed blood, such as from the nose
  5. Swallowed object
  6. Vitamin K deficiency

Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.

Sept. 03, 2014