H. pylori infection is not dangerous, although H. pylori is a bacteria that can cause acute gastritis, chronic gastritis, peptic ulcers and gastric cancer, but after all, there is a certain chance, and after infection with H. pylori, it can be eradicated through oral medication, so it is not dangerous. Patients with H. pylori infection need to be given H. pylori eradication treatment under the guidance of a gastroenterologist, as appropriate, and the current recommendation is triple therapy or quadruple therapy, such as PPI plus two antibiotics, bismuth plus two antibiotics, or a combination of the above four drugs. Patients with H. pylori infection need to go to a regular hospital, and after a detailed history and review of ancillary tests by the doctor, a decision can be made on whether to give medication, and after treatment is completed, a repeat carbon 13 or carbon 14 breath test is needed to help clarify whether H. pylori has been completely eradicated.