Helicobacter pylori is a type of bacterium that can easily infect and cause chronic gastritis, and it even has the potential to lead to cancer. Therefore, patients with Helicobacter pylori generally require formal treatment. In terms of diagnostics, Helicobacter pylori can be detected through a gastroscopy, but the bacteria cannot be detected by gastroscopy alone; the test for Helicobacter pylori is performed under the scope. However, the current main method for testing Helicobacter pylori is through a breath test, since undergoing a gastroscopy just to test for the bacteria can be quite uncomfortable. Moreover, the accuracy of the breath test is relatively high, so currently, Helicobacter pylori is generally detected via breath testing rather than gastroscopy.