Symptoms such as stomach pain, nausea, and headache are mostly caused by inflammatory diseases of the stomach. Specific types of diseases include acute suppurative gastritis, Helicobacter pylori infection, erosive gastritis, etc. Because inflammatory lesions in the stomach cause specific immune reactions in the body’s immune system, resulting in functional dysfunction of the body’s central nervous system, resulting in symptoms such as fever, headache, and weakness. The contact reaction between the damaged part of the stomach and gastric acid and bile will not only cause violent contraction spasm of smooth muscle, but also cause reflux of substances in the stomach, resulting in pain in the stomach and epigastric region, nausea, vomiting, acid reflux, chest pain, etc. The possibility of other types of diseases such as duodenal bulb ulcers and pancreatitis cannot be ruled out, because the above organs, as the adjacent organs of the stomach, will cause pressure stimulation to the outer mucosa of the stomach once tissue congestion occurs, leading to the occurrence of such adverse symptoms.