The symptoms of frequent vomiting sensation are initially diagnosed to be caused by gastric diseases. The common types of diseases include Helicobacter pylori infection, bile reflux gastritis, and hypofractionated adenocarcinoma of the stomach. Because the mucosal tissue of the stomach wall is subjected to long-term invasion by pathogens or tumor cells, it will lead to local ulceration and erosion. The contact reaction between the diseased area and acidic substances such as gastric acid, bile, and digestive enzymes leads to violent contraction of the stomach body muscles. As a result of the increased pressure inside the stomach, the substance may reflux into the esophagus and chest cavity, causing frequent nausea and vomiting. In addition, most patients with this condition also have complications such as gastric distention and pain, black stools, and pus. However, other systemic diseases such as hypertension, myocardial infarction, viral pneumonia, etc., are often accompanied by nausea and vomiting.