Can lung cancer be contagious?

Lung cancer is not an infectious disease, the current stage of research found that the incidence and mortality of lung cancer are gradually increasing every year. The specific cause of lung cancer is not clear at this stage, but smoking is one of the risk factors, belonging to high risk factors. And lung cancer has familial heredity and aggregation, smoking patients will not only cause an increased risk of lung cancer, but also because of passive smoking around people may cause cancer. The survival rate of lung cancer needs to be analyzed in detail. If there is metastasis to liver, brain, kidney or other organs, the survival rate will be lower.