What are the risk factors for lung cancer

If you have lung cancer, you should actively seek treatment. Lung cancer has a certain impact on our quality of life. Do you know what are the risk factors of lung cancer? Regarding this issue, let our experts explain to you what are the risk factors of lung cancer.

What are the risk factors for lung cancer? The following is an introduction to the risk factors for lung cancer:

1. Human endogenous factors such as family heredity, reduced immune function, metabolic activity, endocrine dysfunction, etc. may also play a certain role in the incidence of lung cancer.

2. 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 bronchus and pulmonary fibrosis scar lesions may cause squamous metaplasia or hyperplasia during the healing process. On this basis, some cases may develop into cancer.

3. Smoking According to a large number of survey data from various countries, the cause of lung cancer is closely related to smoking, and the increase in the incidence of lung cancer is parallel to the increase in cigarette sales. Cigarettes contain a variety of carcinogens such as benzopyrene. Experimental animals that inhale cigarette smoke or apply tar can induce respiratory and skin cancer. The incidence of lung cancer in smokers is 10 times higher than that of non-smokers, and the incidence is even higher for those who smoke a lot, 20 times higher than that of non-smokers. At the end of this century, with the increasing number of female smokers in Western European countries, the incidence of lung cancer in female patients has also increased significantly. Among the clinically diagnosed lung cancer cases, those who smoke more than 20 cigarettes a day for more than 30 years account for more than 80%. In the past 20 to 30 years, the situation of smoking in China has been very serious. Nearly 300 million people have the habit of smoking. The smoking rate of male adults in large cities such as Beijing, Tianjin, and Shanghai is nearly 50%, and that of women is nearly 5%. There are also many smokers among young people. If necessary measures are not taken to control and dissuade smoking, the incidence of lung cancer in China will inevitably increase further in the next 10 to 30 years. Long-term smoking can cause bronchial mucosal epithelial cell hyperplasia, squamous cell carcinoma or undifferentiated small cell carcinoma. Although non-smokers can also suffer from lung cancer, adenocarcinoma is more common.

4. Air pollution The incidence of lung cancer is high in industrially developed countries, higher in cities than in rural areas, and higher in factory and mining areas than in residential areas. The main reason is that in industrially and traffic-developed areas, the atmosphere is polluted by harmful substances such as benzopyrene carcinogenic hydrocarbons produced by the combustion of oil, coal, internal combustion engines, and asphalt road dust. Survey materials show that the incidence of lung cancer is also higher in areas with high concentrations of benzopyrene in the atmosphere. Air pollution and smoking may promote each other and play a synergistic role in the incidence of lung cancer.

5. Occupational factors: In the 1930s, there were reports of a high incidence of lung cancer in the Schneeberg mining area in Europe. After years of investigation and research, it is now recognized that 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, mainly squamous cell carcinoma and undifferentiated small cell carcinoma.

I believe that after reading the above explanation, you will have a certain understanding of the factors that cause lung cancer! I hope the above explanation can help you. If you still have any questions, you can directly consult our online experts or call us to find out. The experts will give you detailed answers.

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