Long-term smoking or years of inhaling other people's cigarettes can lead to lung cancer. Besides,

Air pollution, occupational factors, chronic lung diseases and human internal factors (genetic factors) can also lead to lung cancer.

Lung cancer can be prevented and controlled. Research shows that in recent years, due to smoking control and environmental protection, the incidence and mortality of lung cancer in western developed countries have declined.

Prohibit smoking and control smoking, protect the environment, reduce the exposure of occupational carcinogens, and increase fruits and vegetables in the diet. These measures can prevent lung cancer.

English: Long-term smoking or passive smoking can lead to lung cancer. In addition, air pollution, occupational factors, chronic lung diseases and human internal factors (heredity, etc. ) can also lead to lung cancer.

Lung cancer can be prevented and controlled. Research shows that in recent years, after tobacco control and environmental protection in western developed countries, the incidence and mortality of lung cancer have decreased significantly.

Smoking is prohibited and controlled to protect the environment, reduce the exposure of occupational carcinogens, and increase vegetables and fruits in food. These measures can effectively prevent lung cancer.