Gastritis occurs when the lining of the stomach becomes inflamed or swollen.
Gastritis can last for only a short time (
Causes, incidence, and risk factors
The most common causes of gastritis are:
- Certain medications, such as aspirin, ibuprofen, or naproxen, when taken over a longer period of time
- Drinking too much alcohol
- Infection of the stomach with a bacteria called Helicobacter pylori
Less common causes are:
Autoimmune disorders(such as pernicious anemia)
- Backflow of
bileinto the stomach (bile reflux)
- Cocaine abuse
- Eating or drinking caustic or corrosive substances (such as poisons)
- Extreme stress
- Viral infection, such as cytomegalovirus and herpes simplex virus, especially in people with a weak immune system
Trauma or a severe, sudden illness such as major surgery, kidney failure, or being placed on a breathing machine may cause gastritis.