WHAT CAUSES STOMACH ULCERS?
Until relatively recently, the medical community believed that ulcers were caused by excess stomach acid eating through tissues leading to inflammation. In the early 1990’s conclusive evidence identified Helicobacter pylori bacterium as causing almost all cases of duodenal ulcers. Helicobacter pylori secretes toxins that cause inflammation, bringing about damage to the duodenal tissues. A proportion of gastric ulcers are due to nonsteriodial anti-inflammatory drug use and are not due to Helicobacter pylori .
