What are the common causes of lung cancer

Many reasons can lead to lung cancer, which is quite harmful to our body. So, do you know what are the common causes of lung cancer? Regarding this question, let's ask our experts to explain to you the common causes of lung cancer.

Common causes of lung cancer: 1. Occupational factors

In the 1930s, there were reports of high incidence of lung cancer in European mining areas. After years of investigation and research, it is now generally 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.

Common causes of lung cancer: 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. 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 more, 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 smoking situation in my country has been very serious, and 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 females is nearly 5%. There are also many smokers among young people. If necessary measures are not taken to control and discourage smoking, the incidence of lung cancer in my country 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.

Common causes of lung cancer: 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, and internal combustion engines and asphalt road dust. Survey materials show that areas with high concentrations of benzopyrene in the atmosphere also have a higher incidence of lung cancer. Air pollution and smoking may promote each other and play a synergistic role in the incidence of lung cancer.

What are the common causes of lung cancer? I believe that after reading the above explanation, you will have a certain understanding of the common causes of lung cancer! I hope the above explanation can be helpful to everyone! 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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