The best way to check for H. pylori is to choose a carbon 13 or carbon 14 breath test, which is quick, painless and suitable for most patients. There are many ways to check for H. pylori, including invasive tests such as the rapid urease test under gastroscopy, which is not suitable for many patients because it is more painful. The second option is to draw blood to detect H. pylori antibodies or to detect H. pylori through feces, but the antibody test does not confirm that the infection is present and has some limitations. On the other hand, carbon 13 or carbon 14 breath test is convenient and painless, most patients can cooperate with the completion of the test, and the carbon 13 test is non-radioactive, which is more suitable for children, pregnant women, etc. So you can choose the carbon 13 test according to your situation. Therefore, you can choose carbon 13 or carbon 14 to detect H. pylori according to your own situation, and if you have any discomfort in daily life, it is recommended to consult a doctor in time to avoid delaying your condition.