There is no specific reference value for H. pylori antibodies; the normal condition is negative. H. pylori is a bacterium that is closely related to stomach disorders and is mainly detected by the urea breath test. The blood test for H. pylori antibodies is normally negative, with no specific reference value. If the test result is positive, it suggests the presence of H. pylori infection or previous H. pylori infections, and further examination of the breath test is needed to clarify whether it is a current infection. After the diagnosis of H. pylori infection is confirmed, a quadruple therapy is needed, including a proton pump inhibitor, a bismuth agent and two antibiotic drugs, such as omeprazole, bismuth potassium citrate, metronidazole and amoxicillin. Helicobacter pylori infection need to cooperate with the doctor to take medication, the use of drugs must be guided by the doctor, the patient should not self-medicate arbitrarily, and should be regularly rechecked.