The membranes lining the stomach wall protect it from acid and germs. If this protective lining is irritated or damaged, it can become inflamed. Long-lasting inflammations can further damage the stomach lining and lead to stomach (gastric) ulcers.
Gastritis is a general term for a group of conditions with one thing in common: Inflammation of the lining of the stomach. The inflammation of gastritis is most often the result of infection with the same bacterium that causes most stomach ulcers or the regular use of certain pain relievers.
Inflammation of the stomach lining is called gastritis. It's usually caused by certain bacteria or the regular use of anti-inflammatory painkillers.
There are two kinds of gastritis: acute and chronic. Acute gastritis is typically accompanied by very noticeable stomach and bowel problems that usually go away again on their own after a few days. Chronic gastritis, on the other hand, may go unnoticed. Sometimes it's not discovered until stomach ulcers have developed, which then cause noticeable symptoms.