Gastritis is an inflammation (irritation and swelling) of the lining of the stomach
Symptoms:
- Abdominal pain
- Dark stools
- Loss of appetite
- Nausea
- Vomiting
- Vomiting blood or coffee-ground like material
There are many causes of gastritis.
Most common causes:
- Alcohol
- Erosion (loss) of the protective layer of the stomach lining
- Infection of the stomach with Helicobacter pylori bacteria
- Medications such as aspirin or other nonsteroidal anti-inflammatory drugs (NSAIDs)
- Smoking
Less common causes are:
- Autoimmune disorders (such as pernicious anemia)
- Backflow of bile into the stomach (bile reflux)
- Eating or drinking caustic or corrosive substances (such as poisons)
- Excess gastric acid secretion (such as from stress)
- Viral infection, especially in people with a weak immune system