Bleeding in the stool after eating spicy food is usually caused by bleeding in the digestive tract, which is directly related to the stimulation of the intestinal system caused by food. Spicy food is stimulating, a small amount of intake can promote intestinal peristalsis, in the intake of too much will not only cause irritation to the gastric mucosa, causing excessive secretion of gastric acid, but also cause some corrosion of the mucosa of the gastrointestinal tract, some people will cause bleeding of the gastric mucosa due to the damage caused by spicy food to the stomach, blood in the digestive tract for a relatively long time, in the stool is mainly tar-like stool. Spicy food can also cause some irritation in the intestinal tract and can even cut the anus during stool. When bleeding occurs in the lower gastrointestinal tract, the blood is relatively fresh and the blood and stool are mixed together. In the case of bleeding caused by anal cuts, the blood is predominantly bright red and does not mix with feces.