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Topic IndexLibrary Index
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Understanding Gastritis
Gastritis is a painful inflammation of the stomach lining. It has a number of causes. Treatment can ease the symptoms.
The stomach
To digest the food you eat, your stomach makes strong acids and enzymes. These don't harm the lining of a healthy stomach. But acids may irritate the lining when the stomach doesn't work as it should. That's called gastritis.
Causes of gastritis
This problem has many causes. They may include:
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Aspirin and other pain medicines called NSAIDs.
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Tobacco use.
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Alcohol use.
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H. pylori bacteria.
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Trauma from injuries, burns, or major surgery.
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Cocaine use.
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Radiation.
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Serious illness or autoimmune disorders.
Common symptoms
Symptoms may include:
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A burning feeling in your upper belly.
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Pain after eating certain foods.
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Gas or a bloated feeling.
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Frequent belching.
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Nausea with or without vomiting.
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Loss of appetite.
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Feeling full quickly.
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Blood in vomit.
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Stools that look black and tarry.
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Paleness.
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Tiredness (fatigue).
Online Medical Reviewer:
Jen Lehrer MD
Online Medical Reviewer:
Melinda Murray Ratini DO
Online Medical Reviewer:
Rita Sather RN
Date Last Reviewed:
3/1/2025
© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
