H. pylori can be spread through kissing. There are two main ways of transmission of H. pylori: oral-oral and fecal-oral. Kissing is one of the ways of oral-oral transmission, and other ways of oral-oral transmission include sharing utensils and cups with patients. The way to prevent H. pylori from spreading through the oral-oral route is to share meals, not to kiss patients, and not to share utensils. The fecal-oral route of transmission is due to the fact that the bacteria are carried in the patient’s stool and spread due to the lack of hand washing after defecation or other bad living habits. Therefore, you should pay attention to food and hand hygiene to avoid being infected. If you are accidentally infected with H. pylori, you should go to the hospital in time to avoid infecting other members of your family.