Gastritis is inflammation of the stomach lining. Gastropathy is damage to the stomach lining with little or no inflammation. Many people have no symptoms, but these conditions can cause indigestion or signs of stomach bleeding.
Symptoms
When symptoms occur, they may include pain, burning or discomfort in the upper abdomen, nausea, vomiting, loss of appetite, bloating or feeling full soon after starting a meal.
Common causes
Helicobacter pylori (H. pylori) infection is a common cause of gastritis. Other causes include long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs), alcohol-related irritation, autoimmune gastritis and severe illness or injury. The cause matters because treatment differs.
Diagnosis
A healthcare professional may review symptoms, medicines and medical history and perform an examination. Tests can include H. pylori breath or stool testing, blood tests and, when appropriate, upper gastrointestinal endoscopy with biopsies.
Treatment
Treatment targets the cause. H. pylori infection is treated with a combination of medicines that includes antibiotics and acid suppression. Acid-reducing medicines may also be used for other forms of gastritis or gastropathy. If an NSAID or another medicine may be contributing, discuss alternatives with a healthcare professional rather than stopping prescribed treatment on your own.
There is no single special diet that causes or cures most gastritis. Avoid foods or drinks that consistently worsen your own symptoms and limit alcohol when it irritates the stomach.
When to seek medical advice
Arrange an assessment for persistent or recurring upper abdominal pain, indigestion, repeated vomiting, unexplained weight loss, loss of appetite or symptoms of anemia.
Urgent warning signs
Seek urgent medical care for vomiting blood or material that looks like coffee grounds, black or tarry stools, fainting, severe weakness, sudden severe abdominal pain or a rigid, very tender abdomen. These symptoms can indicate significant bleeding or another serious complication.
Related topics
Sources
Last reviewed: 4 September 2026.
Medical disclaimer: This information is general and does not replace individual medical assessment, diagnosis or treatment.