Vomiting blood with black stool is a typical clinical symptom of gastrointestinal bleeding. The common diseases are as follows: 1. duodenal bulb ulcers, especially in young people, bulb ulcers are mostly found in the anterior wall of the duodenal bulb. 2. gastric ulcers, especially ulcers in the anterior wall of the gastric sinus or the gastric horn. 3. esophageal ulcers or pancreatic mucosal tears, there are often triggers for this condition, such as acute gastritis after drinking alcohol or cold and flu, with acute nausea and vomiting. 4. gastric The condition is often caused by acute gastritis after drinking alcohol or cold and flu, with acute gastritis, with acute malignant change of the mesenchymal tumor. 5, rupture and bleeding of esophagogastric fundic varices, commonly caused by advanced cirrhosis of the liver with portal hypertension.