There are several cases of stomach pain from eating: First, the stomach disease itself. Including gastritis, gastric ulcer, gastric mucous membrane erosion and other diseases. In this case, if after eating will make the surface layer of the gastric mucosa irritated, there is a kind of nervous system reaction and cause stomach pain. Second, the cause of diet. After eating spicy, stimulating, cold, hard and greasy food that is not easy to digest, it will form an irritation in the stomach, or the peristaltic dysfunction of the stomach will cause neuropathic pain. Also, if eating stomach pain lasts for a long time, gastroscopy should be performed in time to exclude stomach cancer or other stomach lesions.