What is the cause of lung cancer

In recent years, lung cancer has become one of the major diseases that endangers society and human health, and it has brought great pain and distress to humans. In order to reduce the incidence of lung cancer, we humans should understand the causes of lung cancer:

1. Smoking

Long-term smoking can cause proliferation of bronchial mucosal epithelial cells, induce squamous cell carcinoma or undifferentiated small cell carcinoma. Although non-smokers can also develop lung cancer, adenocarcinoma is more common. Cigarettes release carcinogens when they burn.

2. Air pollution

3. 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, pitch, petroleum, asbestos, mustard gas and other substances can induce lung cancer, mainly squamous cell carcinoma and undifferentiated small cell carcinoma.

(IV) Chronic lung diseases such as tuberculosis, silicosis, and pneumoconiosis may coexist with lung cancer. The incidence of cancer in these cases is higher than that in normal people. In addition, chronic inflammation of the lung bronchi and fibrous scar lesions of the lung may cause squamous metaplasia or hyperplasia during the healing process. On this basis, some cases may develop into cancer.

(V) Human internal factors such as family heredity, reduced immune function, metabolic activity, endocrine dysfunction, etc.

The above are the causes of lung cancer. I hope patients will pay attention to them. Expert Tips: If you have symptoms of illness, do not delay diagnosis and go to a regular hospital for treatment in time to avoid delaying the disease and causing serious consequences. If you have other questions, please consult our online experts or call for consultation.

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