Non-variceal upper gastrointestinal bleeding is a medical emergency in which bleeding develops in the oesophagus, stomach or proximal duodenum and is often caused by peptic ulcers as a result of Helicobacter pylori infection, NSAID use or low-dose aspirin use. This Primer describes how these bleeding events occur and how to resolve this common clinical problem.
- Angel Lanas
- Jean-Marc Dumonceau
- Joseph J. Y. Sung
