Stomach cancer is one of the common cancers, and the incidence of stomach cancer is gradually increasing. Can stomach cancer be contagious? How can stomach cancer be contagious? How to avoid getting stomach cancer? Cancer cannot be transmitted directly, but the bacteria that cause cancer can be transmitted directly. There is a bacterium that you get infected when you eat with others, and this bacterium has been identified as the number one cancer-causing factor of stomach cancer, and it is Helicobacter pylori. H. pylori is very contagious, it is often found in the tartar and saliva of the person who carries the bacteria, so as long as you and this person clip the same plate to eat, you may be infected. Many older people feed their children something to eat when they bite into it before giving it to them, a habit unique to our Chinese parents. However, most of the H. pylori infections in infants and children are caused by mouth-to-mouth feeding. Medical studies have shown that H. pylori infection has a significant aggregation phenomenon, and if one person in the family has the bacteria, almost everyone in the family will be infected. Chinese people like to share their food on the same plate, not only for themselves but also for others. This habit gives the bacteria in the saliva a chance to spread through the chopsticks to the food and infect each other among family members. Tip: For the health of you and your family, change your dining style appropriately, starting with a pair of common chopsticks, to prevent H. pylori infection and reduce the risk of stomach cancer.