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DigestiveICD-10: K29Affects approximately 8 out of every 1,000 people

Gastritis

Also known as: Stomach Inflammation, Stomach Lining Inflammation

Gastritis is the inflammation of the stomach lining, which can occur suddenly (acute) or develop gradually (chronic). It is most commonly caused by H. pylori infection, excessive alcohol use, or long-term NSAID use. Untreated chronic gastritis can lead to stomach ulcers and may increase the risk of stomach cancer.

Symptoms

Gnawing or burning pain in the upper abdomen
Nausea and vomiting
Feeling of fullness or bloating after eating
Loss of appetite
Indigestion (dyspepsia)
Black, tarry stools indicating GI bleeding
Vomiting blood or coffee-ground-like material

Causes

  • Helicobacter pylori bacterial infection
  • Regular use of NSAIDs (aspirin, ibuprofen, naproxen)
  • Excessive alcohol consumption
  • Autoimmune gastritis
  • Bile reflux from the small intestine
  • Severe physiological stress from major surgery or critical illness

Risk Factors

  • H. pylori infection
  • Chronic NSAID or aspirin use
  • Heavy alcohol use
  • Older age
  • Autoimmune conditions
  • Smoking

Diagnosis

  • Upper endoscopy with biopsy of the stomach lining
  • H. pylori testing (breath test, stool antigen, or blood test)
  • Blood tests for anemia and inflammation markers
  • Stool test for occult blood

Treatment

  • Proton pump inhibitors (omeprazole, pantoprazole)
  • H2 blockers (famotidine) as an alternative
  • Antibiotics for H. pylori eradication
  • Antacids for quick symptom relief
  • Discontinuation of causative NSAIDs or alcohol
  • Vitamin B12 supplementation for autoimmune gastritis

Prevention

  • Limit NSAID use and take them with food
  • Moderate alcohol consumption
  • Avoid foods that irritate your stomach
  • Practice good hand hygiene to reduce H. pylori transmission

When to See a Doctor

  • Stomach pain persists for more than a week
  • You experience vomiting blood or black tarry stools
  • Symptoms do not improve with over-the-counter antacids
  • You have unexplained weight loss with stomach symptoms

Frequently Asked Questions

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Medical Disclaimer: This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.

Content reviewed against peer-reviewed medical literature and clinical guidelines. Read our editorial standards.