Acute upper gastrointestinal haemorrhage is a common reason for admission to hospital. Approximately 20% of our annual upper endoscopy workloads are performed for upper gastrointestinal bleeding. The incidence of acute upper gastrointestinal haemorrhage increases markedly with age and is higher in men than in women. Peptic ulcers account for approximately half the lesions, with gastric ulcers less common than duodenal ulcers.