How is lung cancer formed? Five important factors that cause lung cancer

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.

Lung cancer is a serious malignant tumor. Occupational reasons and long-term smoking can lead to lung cancer. Experts say that if people smoke for a long time and have bad living habits, it is very easy to cause lung cancer. Let's take a look at the specific causes of lung cancer.

Introduction to five important factors that cause lung cancer:

Intrinsic factors of the human body

Family heredity, reduced immune function, metabolic activity, and endocrine dysfunction are all causes of lung cancer.

Smoking

Long-term smoking can cause bronchial mucosal epithelial cell hyperplasia, squamous metaplasia and induce squamous cell carcinoma or undifferentiated small cell carcinoma. Although non-smokers can also develop lung cancer, adenocarcinoma is more common.

Occupational factors

Long-term exposure to radioactive substances such as uranium, 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, mainly squamous cell carcinoma and undifferentiated small cell carcinoma.

Chronic lung diseases such as tuberculosis, silicosis, and pneumoconiosis

It can coexist with lung cancer, and the incidence of cancer in these cases is higher than that of normal people. In addition, chronic inflammation of the lung bronchus and lung fibrosis scar lesions may cause squamous metaplasia or hyperplasia during the healing process, on which basis some cases may develop into cancer.

The above is a detailed introduction to several causes of lung cancer for our friends. In life, it is very necessary to understand some of the causes of lung cancer. Only in this way can we avoid the occurrence of the disease to a certain extent. For people with lung cancer, it is very important to receive regular treatment in time.