Stomach pain, stomach pain, diarrhea with black stool, pay attention to acute gastric mucosal lesions, peptic ulcer, gastric cancer and other associated upper gastrointestinal bleeding. 1. Acute gastric mucosal lesion bleeding, these patients may be long-term oral aspirin and other non-steroidal anti-inflammatory drugs, or eating spicy and stimulating food before the onset of the disease, drinking a lot of alcohol, etc., do electronic gastroscopy can be clear. 2. Bleeding peptic ulcer, including gastric ulcer and duodenal ulcer, these patients often have rhythmic epigastric pain, the former is easy to appear after meals, the latter is easy to appear before meals, and if the bleeding volume is large, there will also be vomiting of coffee-like substances, and need to do gastroscopy in time to clarify the cause of bleeding. 3. Bleeding from gastric cancer, this kind of people often suffer from emaciation and have stomach pain without rhythm, and gastroscopy and pathological examination can make a clear diagnosis. In conclusion, if you have the above symptoms, you should highly suspect upper gastrointestinal bleeding, do gastroscopy in time to clarify the cause of bleeding, and don’t take medication without authorization.