The cost of serum gastric triple test is about 200-300 RMB, which is directly related to the level of the hospital and the region, the higher the level, the higher the price. Serum gastric function tests include pepsin I, pepsin II and gastrin 17, and are performed by collecting blood on an empty stomach. According to the test results, the function of the gastric mucosa and the degree of damage can be understood, which can be used for the diagnosis of chronic gastritis, atrophic gastritis, gastric ulcer and early gastric cancer. In case of long-term nausea, vomiting, abdominal pain, bloating, acid reflux, belching and other symptoms, gastroscopy and serum gastric function tests can be performed under the guidance of a doctor to clarify the specific cause.