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Digestive system
Digestive system
Stomach and stomach lining
Stomach and stomach lining

Gastritis

Definition:
Gastritis is an inflammation of the lining of the stomach.

Causes, incidence, and risk factors:

Gastritis can be caused by bacterial or viral infection, autoimmune disorders, or backflow of bile into the stomach (bile reflux).

Gastritis can also be caused by irritation from:

  • Medications (such as aspirin or anti-inflammatory drugs)
  • Alcohol
  • Chronic vomiting
  • Excess gastric acid secretion (such as from stress)
  • Eating or drinking caustic or corrosive substances (such as poisons)

Gastritis can occur suddenly (acute gastritis) or gradually (chronic gastritis).

See also:



Symptoms:


Signs and tests:
Tests vary depending on the specific cause. An upper GI X-ray, EGD, or other tests may be advised.

Treatment:
Treatment depends on the specific cause. Some of the causes will resolve over time. Medications to decrease stomach acid secretion may be recommended.

Expectations (prognosis):
The outlook depends on the cause, but is usually good.

Complications:
See the specific types of gastritis.

Calling your health care provider:
Call for an appointment with your health care provider if you develop gastritis symptoms.

Prevention:
Avoid long-term use of irritants (such as aspirin, anti-inflammatory drugs, or alcohol).


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