The H. pylori test belongs to a gastroenterology or gastrointestinal endoscopy center, such as the carbon 13 breath test or the carbon 14 breath test. However, the test can also be done in some hospitals’ physical examination centers, depending on the departmental allocation of the hospital where the patient is seen. In addition, if the patient wants to check for H. pylori antibodies, at this point, venous blood needs to be drawn for the test, which then belongs to the laboratory department. However, the test can only be done if a gastroenterologist orders the test or if a physician at a medical examination center orders the test. People with H. pylori infection need to be treated with medication under the guidance of a specialist, if necessary. H. pylori is the main cause of acute and chronic gastritis, peptic ulcers and gastric cancer. Therefore, patients need to pay attention to it and cooperate with doctors to give medication if necessary.