What are the causes of lung cancer?

What are the causes of lung cancer? Experts say that the exact cause of lung cancer is still not well understood, but after investigation, research and analysis, the following factors are found to be related to lung cancer. Let's take a look.

1. Smoking: According to a large number of survey data from various countries, the cause of lung cancer is closely related to smoking. The increase in the incidence of lung cancer is parallel to the increase in cigarette sales.

2. Occupational factors: Long-term exposure to radioactive substances such as uranium and radium and their derivatives, carcinogenic hydrocarbons, arsenic, chromium, nickel, copper, tin, iron, coal tar, asphalt petroleum, asbestos mustard gas and other substances can induce lung cancer.

3. Internal factors of the human body are also related to the cause of lung cancer: such as family heredity, reduced immune function, metabolic activity, endocrine dysfunction, etc. may also play a certain role in promoting the incidence of lung cancer.

4. Chronic lung diseases: such as tuberculosis, silicosis, and pneumoconiosis can coexist with lung cancer. The incidence of cancer in these cases is higher than that of normal people. In addition, chronic inflammation of the lung bronchi and pulmonary fibrosis scar lesions may cause squamous metaplasia or hyperplasia during the healing process, and on this basis, some cases may develop into cancer. Therefore, this is also closely related to the cause of lung cancer.

Experts also remind that air pollution is also closely related to lung cancer. The above is an introduction to the causes of lung cancer. If you have any other questions about lung cancer, please consult online experts who will give you detailed answers.

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