Too much chili pepper can cause diarrhea because chili pepper itself can be a certain stimulus to the stomach and intestines, because chili pepper contains capsaicin, which, when it enters the human gastrointestinal tract, can cause spasm and pain on the one hand and damage to the stomach mucosa on the other. In addition, it can also cause damage to the intestinal mucosa, which can also induce intestinal spasm or intestinal dysfunction, thus leading to diarrhea after excessive consumption of chili peppers. Therefore, once a patient has frequent diarrhea from excessive consumption of chili peppers, it is recommended to consume less chili peppers on the one hand, and if it occurs frequently, a colonoscopy can be performed to determine whether the diarrhea is organic or functional. If the colonoscopy is also clean, then it is recommended to avoid eating chili peppers in the future if the diarrhea is caused by excessive consumption of chili peppers and other stimulating diets.