What are the early symptoms of acute erosive gastritis?

Acute erosive gastritis

is clinically characterized by multiple erosions of the gastric mucosa as the main feature of acute gastritis, early typical symptoms are dull pain in the upper abdomen, nausea, abdominal distension, acid reflux, etc., but these digestive symptoms are often masked by the primary symptoms, only under gastroscopy performance for gastric mucosa erosion, bleeding, etc., some serious acute erosive gastritis can suddenly occur upper gastrointestinal bleeding or black stool.