Sometimes the stomach is hot, usually called heartburn, and the triggering causes may be related to psychological and mental factors, food factors, stress reactions, and acute and chronic gastrointestinal diseases. 1. Psycho-spiritual factors: such as chronic stress, mental overstress, physical fatigue and high alertness can lead to excessive secretion of gastric acid, causing the stomach to be hot. 2. Food factors: such as eating too sweet, too oily, too spicy and too cold spicy, as well as drinking strong tea, alcohol and coffee, eating chocolate, etc., will also cause a large amount of gastric acid secretion and cause the stomach hot. 3. Stress reaction: due to severe trauma and major surgery, as well as major mental stimulation and multi-organ failure, etc., will cause stress reaction, resulting in excessive secretion of gastric acid, causing gastric mucosa damage, erosion, and even bleeding. 4. Acute and chronic gastrointestinal diseases: such as acute and chronic gastritis, gastroesophageal reflux disease and gastroduodenal ulcer, etc., may cause excessive secretion of gastric acid, causing the stomach hot. It is recommended that patients need to exclude food factors and mental factors, if necessary, to the regular hospital to accept the relevant examination and scientific treatment.