H. pylori is essentially a bacterium, a Gram-negative bacterium. The bacterium is extremely viable, able to survive in the strong acidic environment of the stomach, and is the only bacterium found to survive inside the stomach. H. pylori can be spread in two ways: one by people infected with H. pylori and the second by water sources infected with H. pylori. So the transmission route also includes two aspects: 1, mouth-to-mouth transmission, H. pylori infection may be present in the mouth of bacteria, eating together, kissing, the use of unclean utensils, mother-to-child transmission, saliva transmission are likely to infect H. pylori. Especially adults chewed food to feed children, easy to transmit H. pylori to children. 2, fecal oral transmission, H. pylori feces in the presence of H. pylori, if contaminated water, healthy people drinking water containing H. pylori, can be infected. Therefore, according to the transmission of this bacteria we should cut off the transmission at the source. For example, patients with gastritis should try not to kiss their babies. Improper washing of dishes increases the chance of infection, so wash the dishes for 15 minutes a day. Separate the use of personal household items. Exercise more to improve your immune system.