An inflammation of the lining of the stomach.
Causes, incidence, and risk factors
Gastritis can be caused by infection, irritation, autoimmune disorders , or backflow of bile into the stomach (bile reflux). Infections can be bacterial or viral. Irritation can be caused by medications (such as aspirin or anti-inflammatory drugs), alcohol, chronic vomiting , excess gastric acid secretion (such as from stress ), or eating or drinking caustic or corrosive substances (such as poisons). Gastritis can occur suddenly ( acute gastritis ) or gradually ( chronic gastritis ). Disorders associated with gastritis include:
stress gastritisHelicobacter pylori gastritis (chronic gastritis) chronic gastritis acute gastritis autoimmune gastritis
Signs and tests
Tests vary depending on the specific cause. An upper GI X-ray , esophagogastroduodenoscopy ( 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 prognosis depends on the cause but is usually good.
Complications
See the specific disorders associated with 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, alcohol).