The manifestations of gastric bleeding include: 1, fever: but the body temperature is not high, usually not more than 38.5 ℃, which is the early manifestation of gastric bleeding; 2, vomiting blood and black stool: this is the most characteristic manifestation of bleeding in the upper gastrointestinal tract, generally can see black stool, may not have vomited blood, black stool is generally tar-like, sticky and shiny, vomiting blood is mostly brown, coffee-like; 3, blood loss: after gastric bleeding caused by circulating blood The clinical manifestations include dry mouth, dizziness, sweating, nausea, and even fainting, and the patient may faint and fall down after going to the toilet to defecate. Do not panic when you encounter gastric bleeding, but take simple first aid measures, such as resting flat on your back, keeping your airway open, and seeking medical attention nearby. Stomach bleeding requires immediate bed rest, preferably lying flat and elevating the lower limbs, avoiding lying with the head low and feet high to avoid affecting breathing. When the patient bleeds especially heavily and combined with hemorrhagic shock, if not careful, sudden standing often also causes cerebral ischemia and fall; the second is to keep the respiratory tract open, keeping the respiratory tract open is the most important measure in home rescue. Therefore, when the patient vomits blood, he should turn his head to the side and clean the bleeding from the mouth in time; in addition, he should abstain from eating and drinking, once the patient vomits blood and black stool, he should not eat and can use a cold water bag on the upper abdomen.