What does acute gastric mucosal lesion mean?

Acute gastric mucosal lesions refer to mucosal damage characterized by erosion, superficial ulcers, and bleeding, which occurs under stressful conditions or direct stimulation by physical or chemical factors. The main clinical manifestations include acid regurgitation, mild abdominal pain, vomiting, nausea, belching accompanied by dizziness, palpitations, hematemesis, and melena. Common causes include medications (e.g., nonsteroidal anti-inflammatory drugs, corticosteroids), alcohol intoxication, stress factors (e.g., severe trauma, surgery), and bacterial infections. If left untreated, severe cases may lead to hemorrhagic shock, endangering life. Diagnostic methods include occult blood tests of vomitus or stool, gastroscopy, and barium meal X-ray examination of the gastrointestinal tract.