After eating diarrhea, you need to consider the following aspects of the problem: First, there may be food contaminated by bacteria or food spoilage caused by the expiration date, bad food into the human intestine, the toxic substances contained in the intestinal bacteria will react with the intestinal bacteria, or cause some stimulation of the intestinal mucosa, resulting in increased permeability of the intestinal mucosa and excess water combined with feces, the intestinal pressure increases easily produce diarrhea. Secondly, it may be irritable bowel syndrome, where diarrhea occurs due to food stimulation, weather changes or mood swings, and if you take spicy and stimulating food or food that is too cold, it may produce a stress reaction and lead to diarrhea after eating. Third, consider diarrhea caused by other intestinal diseases, commonly chronic enteritis, ulcerative colitis, Crohn’s disease, etc.