The H. pylori antibody test is not very accurate and for positive results is suggestive of a previous H. pylori infection, but H. pylori infection is not necessarily present at this time. Patients are advised to do further carbon 13 or carbon 14 breath tests and also have the option to do an electronic gastroscopy to take a gastric mucosal biopsy for a rapid urease test. These tests have a high accuracy rate and can be used to determine the presence of H. pylori infection and, if necessary, to administer medication to eradicate H. pylori under the guidance of a specialist. If the result of the H. pylori antibody test is negative, it means that there is no H. pylori infection and no further testing or medication for H. pylori is needed. In short, for H. pylori infection, it is recommended that patients should be guided by a specialist to choose a test with a higher accuracy rate.