Gastritis can be described as inflammation of the stomach lining.

It is diagnosed through one or more medical tests:

  • Blood test - Check for anemia by looking at red blood call count. Bleeding from the stomach can be a cause of anemia (low red blood cell count)

  • Stool test - Check for presence of blood or the Helicobacter pylori bacteria in the stool.

  • Upper gastrointestinal endoscopy - Checking the stomach lining for inflammation with an endoscope (thin tube with tiny camera) insterted through mouth or nose. For testing purposes a sample of tissue may be removed, this is called a biopsy.