Eating cold food will upset stomach may be related to physiological factors such as improper diet, as well as digestive tract diseases including gastritis, gastric ulcer and other pathological factors. 1. Improper diet: Eating raw and cold food will cause some stimulation to the gastrointestinal tract. Or the raw and cold food eaten is not hygienic, rotting, spoiled and so on, causing gastric discomfort. 2. Digestive tract diseases: digestive tract diseases include gastroenteritis, peptic ulcer, gastric ulcer, etc. Such diseases are caused by the patient’s own damage to the gastrointestinal tract, and after consuming raw and cold food, it will aggravate the stimulation reaction of the gastrointestinal tract and cause gastric discomfort. If the symptoms of eating cold food upset stomach are not relieved, or accompanied by other symptoms, you should go to the hospital in time to see a doctor, clear reasons to give targeted treatment.