About the Condition
The stomach is a hollow, muscular pouch in the upper-left region of the abdomen, typically 10 inches long in adults. Its main purpose is to process and store food. The walls of the stomach contain layers of muscles and glands that produce enzymes and gastric acid to aid in digestion. A protective and sticky mucous coating normally protects the walls of the stomach from its own corrosive acid.
Atrophic gastritis usually occurs as the result of chronic gastritis, a condition caused by H. pylori infection that weakens the protective mucous layer of the stomach and allows gastric acid to reach and damage the stomach lining.
Because atrophic gastritis develops over a long period of time, it is typically found later in life. Years of ongoing inflammation from the condition result in the gradual wasting away (atrophy) of the stomach lining. In turn, the stomach produces less gastric acid.
People with atrophic gastritis usually have no symptoms, although some may experience stomach pain, nausea, vomiting or weight loss. In a few cases, patients may also develop pernicious anemia, the inability to absorb vitamin B-12 from the gastrointestinal tract. This can lead to dementia and an increased risk of stroke and other health problems in older patients if left untreated.
Moreover, people with atrophic gastritis have an increased risk of developing ulcers and stomach cancer.
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