Lung cancer is contagious.

Lung cancer is not an infectious disease, so eating together with lung cancer patients will not be contagious. Lung cancer is mainly caused by environmental factors, epidemiological investigation shows that the occurrence of lung cancer and a variety of factors, such as smoking, occupational factors, air pollution, ionizing radiation, biological factors, etc. Research confirmed that smoking is the most important factor causing lung cancer, tobacco contains a variety of carcinogens; Occupational carcinogenic factors are inorganic arsenic, asbestos, chromium, nickel, coal tar, etc., for a long time in this environment the probability of cancer can be significantly increased; automobile exhaust, house decoration, road asphalt and other substances also contain carcinogens; in addition, such as ionizing radiation, tumor suppressor gene loss or distortion may cause cancer. Although there are many factors that can cause cancer, but no research has confirmed that lung cancer can be acquired by infection, so do not worry about eating with lung cancer patients will be infected with lung cancer.