When someone around you has liver cancer or is a liver cancer patient, many people have the question: Is liver cancer contagious? Will liver cancer be contagious to each other if we live together and work together? Whether liver cancer is contagious or not, and whether it will spread widely from person to person like measles, hepatitis and other infectious diseases, are indeed issues of great concern to people. To solve the question of whether liver cancer is contagious, we need to understand the knowledge of infectious diseases first. Infectious diseases are transmitted from one person to another through certain means. Three conditions must be met to be infectious: infectious source, transmission route and susceptible people. According to clinical data, cancer patients themselves are not infectious sources, so liver cancer is not contagious either.