Lung cancer is not contagious, which means that it will not be transmitted to family members, so rest assured. Infectious diseases are spread by bacterial and viral diseases, and lung cancer is a serious malignant tumor disease, so it is not contagious.

　　Lung cancer, which is caused by the activation of its own carcinoembryonic antigen, is the most common type of cancer. And it is very easy to spread, so early detection and early treatment are crucial. So be sure to go to the hospital to be hospitalized.

　　Clinical data proves that cancer patients themselves are not the source of infection. The cancer cells in the patient''s body are a group of abnormal cells that are out of control and are infiltrating and growing. It not only destroys the adjacent normal tissues and organs, but also can be transferred to all parts of the body through the lymphatic tract and blood circulation, and absorbs a lot of nutrients, and quickly grows and proliferates, causing the patient''s systemic failure until death.

　　Through the current understanding of lung cancer, it has been confirmed that lung cancer is not contagious. The so-called infection refers to a certain disease spread from one person to another through some way. Infection must have three conditions: the source of infection, the route of transmission, and the susceptible population, all of which are indispensable. Clinical data proves that cancer patients themselves are not the source of infection.

　　 Cancer cells in the patient''s body are a group of abnormal cells that are out of control and are infiltrating and growing. It not only destroys the adjacent normal tissues and organs, but also can be transferred to all parts of the body through the lymphatic tract and blood circulation, and absorbs a lot of nutrients, and quickly grows and proliferates, causing the patient''s systemic failure until death.

　　Although cancer cells can spread or metastasize in patients, it will not be like bacteria and viruses, and lung cancer will not be transmitted from one person to another. For himself, the cancer cells of others are a kind of foreign body, and the body destroys the cancer cells through a strong immune rejection ability. Therefore, other people''s cancer cells cannot survive into their own bodies.