Whether gastrointestinal bleeding can heal on its own requires specific analysis according to different causes, and cannot be generalized. If the bleeding is a mild ulcer, it can be basically relieved by a reasonable diet and avoiding cold, hard, spicy and irritating foods, and has the possibility of self-healing. If the bleeding is caused by violent vomiting after unclean diet or excessive alcohol consumption, when there is vomiting of blood or persistent black stool or bloody stool, it means that the bleeding is more serious and cannot be self-healed, so the cause needs to be identified in time and medication or endoscopic treatment to stop the bleeding is needed, or surgery is needed for serious cases. If the GI bleeding is caused by tumors such as stomach cancer or intestinal cancer, it usually does not heal on its own either and requires surgical treatment. The causes of gastrointestinal bleeding are complicated, so it is recommended to go to gastroenterology department for gastroscopy and colonoscopy in time to clarify the causes and treat them in time. At the same time, eat a light diet, do not eat spicy and stimulating food, and eat more soft liquid food that is easy to digest.