Gastritis is an inflammation (irritation and swelling) of the lining of the stomach.
There are many causes of gastritis.
The most common are:
Less common causes are:
Gastritis can last a short time (acute gastritis) or for months to years (chronic gastritis).
Tests vary depending on the specific cause. An X-ray of the upper digestive tract, EGD, or other tests may be advised.
Treatment depends on the specific cause. Some of the causes will disappear over time. Medications to neutralize stomach acid or decrease its production may be recommended.
The outlook depends on the cause, but is usually good.
See the specific types of gastritis.
Call for an appointment with your health care provider if you develop gastritis symptoms.
Avoid long-term use of irritants (such as aspirin, anti-inflammatory drugs, or alcohol).