H. pylori 0.3dpm is generally the result of the H. pylori breath test. When conducting the H. pylori test, you need to take urea containing the tagged urea. If there is H. pylori in the body, the urea will be decomposed by the urease in H. pylori, producing carbon dioxide with the tag, and the amount of H. pylori in the body can be clarified by testing the tagged elements. H. pylori test is divided into C13 and C14, H. pylori 0.3dpm is what happens, need to be judged according to the way the test. 1, C13: when using C13 test reagent for testing, if more than 0dpm, then H. pylori infection is suspected, but not necessarily, if more than 4dpm, then H. pylori infection is highly suspected, more than 6dpm can generally A diagnosis of H. pylori infection is usually confirmed. H. pylori 0.3dpm may have H. pylori infection, but the amount of H. pylori is relatively small, may also be not infected, can be further gastroscopy to take a biopsy for bacterial culture methods to clarify the presence of H. pylori in the stomach; 2, C14: C14 test, the results are less than 100dpm is negative, more than 100dpm is positive, so H. pylori 0.3 dpm suggests a negative result, considering that no infection has occurred.