H. pylori is an infectious disease, once infected with H. pylori will lead to peptic ulcers, indigestion, gastric cancer, and even lymphoma and other diseases, life prevention of H. pylori, through the following methods: first, before meals, after the stool, wash hands regularly, because H. pylori can be transmitted through the mouth, fecal mouth, so when unclean hands touch H. pylori, another person moved food and fecal mouth infection The pathway of H. pylori may be transmitted through the hands, so before meals and before and after the stool should be washed with soap. Secondly, when eating out in a group, make sure to prepare common chopsticks and spoons, and divide the meal into their own plates or bowls. When dining at the same table, it is impossible to know clearly which diner is infected with H. pylori, and if there are no common chopsticks, people with H. pylori can bring the bacteria to the food through their own chopsticks and saliva, and they are contaminated by the food, so they may be at risk of infection with H. pylori. Third, if there is a patient with H. pylori infection in the family, make sure to clearly do the meal sharing system and also ensure the necessary disinfection to ensure that the family is not infected by the patient. Fourth, if you find that you may be infected with H. pylori, you must go to the hospital for examination, and once infected you should immediately undergo treatment to eradicate the bacteria to avoid infecting others.