The burning sensation in the stomach after eating is mainly considered to be related to dietary stimulation, functional indigestion and organic lesions of the gastrointestinal tract. 1. Dietary stimulation: consuming more spicy and stimulating or indigestible food will stimulate the gastric mucosa, leading to excessive secretion of gastric acid, and then the symptoms of heartburn. 2. Functional dyspepsia: Functional dyspepsia can be further exacerbated after eating and drinking. It leads to bloating, nausea, heartburn, abdominal pain and other symptoms. 3. Organic lesions of the gastrointestinal tract: chronic gastritis, gastric ulcer, cholecystitis and other diseases can lead to gastrointestinal dysfunction, which can lead to dyspepsia, heartburn, abdominal distension, abdominal pain and other symptoms. If such symptoms occur, it is recommended to consult a doctor as soon as possible to clarify the cause and to carry out treatment under the guidance of the doctor.