People with H. pylori need to cut off the transmission pathway by sharing meals and sterilizing utensils regularly when they are with their families. H. pylori is an aerobic bacterium, and infection may lead to diseases such as gastritis, gastric ulcer and even gastric cancer, with symptoms such as bloating, stomach pain, acid reflux and heartburn. H. pylori is contagious, mainly transmitted to family members through oral-oral transmission, fecal-oral transmission, etc. Therefore, the infected person needs to eat and drink with family members, try to ensure that each family member uses a fixed set of tableware and cups, and sterilize the tableware and other items after use. Family members should not share toothpaste, toothbrushes and other household items, and try to maintain a certain distance when communicating to avoid intimate behavior. When infected with Helicobacter pylori, it is also recommended that family members check the Helicobacter pylori breath test to see if they have been infected and treat the infection together.