Eat leeks stomach upset with bad eating habits, but also may be related to stomach diseases. 1. Bad eating habits: swallowing and overeating during meals will increase the burden on the stomach, while leeks are not easy to digest, which can lead to stomach discomfort after eating. 2. Stomach diseases: the symptoms of stomach discomfort after eating leeks may also be related to stomach diseases, such as gastric ulcer, gastritis, duodenal ulcer and so on. Patients with gastric diseases may have gastric mucosa congestion, swelling and other phenomena, leeks will cause stimulation of the gastric mucosa, thereby aggravating the condition, the symptoms of gastric distress. If the symptoms of gastric discomfort continue to be unrelieved, it is recommended to consult a doctor in a timely manner, under the guidance of a professional physician to clarify the cause of the disease, so as not to delay the condition.