Blood test can check H. pylori antibodies, H. pylori antibodies do not mean that there is currently H. pylori infection, there is no H. pylori infection antibody test, there are two kinds of situations: 1, there is no previous H. pylori check, and there is no treatment of H. pylori, if there is a positive H. pylori antibody, it can be used as a basis for there is no H. pylori treatment, 2, if there has been a H. pylori treatment and H. pylori test, this time again check positive, it is not a basis for the treatment of H. pylori. Helicobacter pylori test, this time and then check the positive H. pylori antibodies, and can not be used as a basis for treatment of H. pylori. At present, the main treatment to detect whether there is H. pylori is C13, C14 breath test, this test is more accurate.