Upper GI & Esophagus
Gastritis
Inflammation of the stomach lining that can cause pain, nausea, and other symptoms.
Image: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH
CategoryUpper GI
Typical NatureAcute or chronic
UrgencyRoutine evaluation
What Is Gastritis?
Gastritis is inflammation of the stomach lining, which can be acute (sudden) or chronic (long-lasting). It has many possible causes, from H. pylori infection to chronic NSAID use, and identifying the trigger guides effective treatment.
Symptoms of Gastritis
Common Symptoms
- Upper abdominal pain or burning
- Nausea or vomiting
- A feeling of fullness after eating
- Loss of appetite
Causes & Risk Factors
Common Causes
- H. pylori infection
- Chronic NSAID use
- Excessive alcohol use
- Autoimmune conditions
- Stress in severe illness
Risk Factors
When to See a Doctor: Red-Flag Symptoms
Most digestive symptoms can be evaluated at a routine visit. However, seek prompt medical attention if you experience any of the following:
- Difficulty or pain swallowing
- Vomiting blood or material resembling coffee grounds
- Unintended, unexplained weight loss
- Persistent vomiting that doesn't improve
If you're experiencing a medical emergency, call 911 or go to your nearest emergency room.
How Gastritis Is Diagnosed
- A detailed symptom history and physical exam
- Upper endoscopy to directly examine the esophagus and stomach
- H. pylori testing when indicated
- Imaging or lab work to rule out related causes
Treatment Options
- H. pylori testing and eradication therapy when positive
- Acid-reducing medications
- Avoiding NSAIDs and alcohol during treatment
- Upper endoscopy for persistent or severe cases
Related Services & Procedures
Prevention
- Limiting NSAID use
- Moderating alcohol intake
- Treating H. pylori infection when present
Related Conditions
Frequently Asked Questions
H. pylori is a common bacterial infection of the stomach lining that can cause gastritis and ulcers. It's treated with a combination of antibiotics and acid-reducing medication.
Mild, acute gastritis sometimes resolves on its own once the trigger (like an NSAID) is removed, but chronic or symptomatic cases usually need evaluation and treatment.
No, though they're related — gastritis is inflammation of the stomach lining, while an ulcer is an actual break in that lining. Gastritis can sometimes progress to ulcers if untreated.
Reviewed by Dr. Anthony Marchetti, MDThis content is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.