After eating the stomach hot fire start with improper diet, reflux esophagitis, gastric ulcer related. Many people will have improper eating habits in their diet, such as a preference for spicy, irritating food, such foods have little effect on the digestive system when consumed in small amounts, and irritating food will cause irritation to the stomach wall when consumed in large amounts. Due to the stimulation of the stomach wall by food, spasmodic pain in the stomach can occur. Stimulating food can lead to excessive secretion of gastric acid and cause a burning sensation in the stomach, and the protective barrier of the esophageal mucosa of patients with reflux esophagitis can be damaged during an attack. In patients with gastric ulcers, ulcers have already appeared on the gastric mucosa, and after eating, the presence of food will stimulate excessive secretion of gastric acid, which will cause irritation to the ulcer surface when the gastric acid comes into contact with it, resulting in symptoms of stomach heat and fire.