| Subject | Contents |
| Definition | An inflammation of the lining of the stomach. |
| Alternative Names | |
| 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 |
| Symptoms | hiccupsabdominal indigestionloss of appetitenauseavomitingvomiting blood or coffee-ground like material dark stools |
| 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. |
| Support Groups | |
| 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). |
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