Signs and symptoms
... The signs and symptoms of gastritis, which are often relatively mild and short-lived, include: A gnawing or burning ache or pain (indigestion) in your upper abdomen that may become either worse or bet...

Causes
... Your stomach — a hollow, muscular sac — sits in the upper left corner of your abdomen, just under your rib cage. The typical adult stomach is around 10 inches long and can expand to hold a...

Risk factors
... The most significant risk factor for gastritis is infection with H. pylori bacteria. In the United States, one in five people younger than 40 and half of people older than 60 are infected. The numbers...

When to seek medical advice
... Nearly everyone has experienced a bout of indigestion and stomach irritation. Most cases of indigestion are short-lived and don''t require medical care. But if you experience signs and symptoms of gas...

Screening and diagnosis
... Although your doctor is likely to suspect gastritis after talking to you about your medical history and performing a thorough exam, you may also have certain tests to pinpoint the exact cause. These t...