Intestinal bleeding may have symptoms such as fever, bloody stools, anemia, vomiting blood and black feces. 1. Fever: some patients with intestinal bleeding will have low-grade fever, which usually returns to normal after 3 to 5 days. 2. Bloody stools: With much upper gastrointestinal bleeding, the intestinal blood flow will be accelerated and dark red stools will appear. 3. Anemia: Due to excessive intestinal bleeding, the patient may become anemic. In early bleeding, hemoglobin concentration and red blood cell count will not change significantly. 4. Vomiting and black feces: This is a typical symptom of upper gastrointestinal bleeding. After upper gastrointestinal bleeding, black stools will appear. Bleeding in the upper pylorus is often accompanied by vomiting of blood. Usually, the amount of bleeding is small and the rate of blood flow is slow, and the symptom of vomiting of blood may not occur. When intestinal bleeding is detected, it is recommended to go to the regular hospital in time and give reasonable treatment under the guidance of professional doctors.