is defined as an "inflammation of the gastric mucosa that can be caused by factors of different origin and nature, such as infections (including those from Helicobacter pylori), injuries, taking certain types of drugs (for example, NSAIDs), stress resulting from serious diseases and disorders affecting the immune system.
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Under normal conditions, the gastric mucosa is well protected and perfectly resists the hydrochloric acid produced by the parietal cells of the stomach; but when factors that alter the normal defense mechanisms take over, this protection fails and the inner wall of the stomach undergoes irritation. and inflammation, thus developing gastritis.
Typical symptoms of gastritis consist of heartburn, dyspepsia, bad breath, abdominal discomfort, and sometimes nausea and vomiting.
