Gastric discomfort can be characterized by stomach pain, bloating, acidic belching, nausea and vomiting, etc. The stomach is mainly used for storing and digesting food, but when there is a disease in the stomach, the majority of people will suffer from gastric discomfort. Common diseases that can cause gastric discomfort include gastritis, gastric ulcer, gastric ptosis, pyloric obstruction, reflux esophagitis, and stomach cancer. Gastric discomfort is mainly characterized by pain, including vague pain, distension and dull pain, which are directly related to inflammation, ulceration and perforation of the gastric mucosa. After food enters the stomach, the stomach will digest the food through stirring and grinding, and then discharge into the duodenum. Once the stomach’s digestion of food is impaired, the food will remain in the stomach for a long time, and it will also cause irritation to the stomach lining, which will result in a feeling of bloating in the stomach. Most people experience gastric discomfort due to excessive secretion of gastric acid, gastric acid will cause some stimulation of the gastric mucosa, especially when there is edema, ulcer phenomenon, the irritation is stronger, then there will be acid reflux, belching and other manifestations of the stomach. Some people in the occurrence of gastric discomfort, due to increased intragastric pressure, the food in the stomach will be squeezed by the stomach wall, through the esophagus at the excretion, so it will also be accompanied by nausea, vomiting and other symptoms.