Patients with gastrointestinal bleeding, if the amount of bleeding is greater than 50ml per day, it will be manifested as black stools, that is, tarry stools. The most common cause is upper gastrointestinal bleeding, the main disease is peptic ulcer, including gastric ulcer and duodenal ulcer, usually should pay attention to the regular review, in the acute stage if the black stool or bleeding, you can orally take drugs to stop the bleeding, commonly used are Anluoxue blood and hemostatic minerals; you can also intramuscular injections of vitamin K. In addition, you should also apply to the protection of the mucous membrane of the gastrointestinal tract, commonly used are proton pump inhibitors, because this kind of drug has a certain therapeutic effect on ulcer disease, and also stop the bleeding. In addition, drugs to protect the mucosa of the gastrointestinal tract should also be applied, commonly used are proton pump inhibitors, because this kind of drug has a certain therapeutic effect on ulcer disease, as well as the effect of hemostasis; you can choose omeprazole tablets or enteric-coated capsules to be orally administered.