Difficulty in stomach needs to be combined with the site of abdominal pain, nature, rhythmicity, whether there is a discharge pain, etc. to make a preliminary judgment, and the common causes are gastric diseases, improper diet and so on. Patients with gastric diseases, such as gastric ulcer, chronic gastritis, and gastric cancer, will experience epigastric discomfort, making the patient feel uncomfortable in the stomach. Improper diet may also lead to symptoms of gastric distress, common causes include eating cold, unclean food, spicy and stimulating food, etc., which can make the gastric mucosa congested and edematous due to the strong stimulation of food, and the patient will experience gastric discomfort, accompanied by nausea and vomiting and other related symptoms. Therefore, it is necessary to consult a doctor in time for gastroscopy and other related examinations to clarify the cause of gastric discomfort.