- Duodenal ulcer-35%
- Gastric ulcer -20%
- Acute gastritis (drugs)
- Erosion/haemorrhagic gastritis -20%
- Mallory-Weiss syndrome-5%
- Gastric carcinoma- 5%
- Oesophageal varices- 10%
- Others- 5%
- (Leiomyoma, haemophilia, thrombocytopenia, Ehlers-Danlos syndrome, rupture of aorta into stomach, anticoagulants)