What are the causes of lung cancer? Know the five major causes of lung cancer and prevent them early

Lung cancer is a very common lung disease. Due to its high prevalence, it poses a great threat to the patient's health, so it has attracted the attention of many patients and their families. So why do people get lung cancer? Let the experts tell you some of the causes of lung cancer, hoping it will be of some help to you.

Lung cancer occurs in the bronchial mucosal epithelium, also known as bronchial lung cancer. Lung cancer generally refers to cancer in the lung parenchyma. Lung cancer is currently the leading cause of cancer death in the world. In 1995, 600,000 people died of lung cancer worldwide, and the number is increasing every year. The incidence of lung cancer in women is particularly on the rise.

Causes of lung cancer

The cause of lung cancer is still not completely clear. A large amount of data shows that the risk factors of lung cancer include smoking (including second-hand smoke), asbestos, radon, arsenic, ionizing radiation, halogenated olefins, polycyclic aromatic compounds, nickel, etc. The details are as follows:

(1) Air pollution

(2) Human endogenous factors such as family heredity, reduced immune function, metabolic activity, and endocrine dysfunction.

(3) 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. Carcinogens are released when cigarettes burn.

(4) 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.

(5) 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.

Lung cancer occurs in the bronchial mucosal epithelium, so the mortality rate of this disease has always been the highest among cancers in the world. Therefore, please pay attention to your own prevention of the disease and don't let the disease appear in us. Finally, the experts wish you all a healthy life every day!