What are the specific causes of lung cancer?

What are the specific causes of lung cancer? As an important organ of the body, the lungs are in direct contact with the outside world. Most lung diseases are caused by external factors, and many external factors are also the direct cause of lung cancer. So what are the specific causes of lung cancer? Let our experts introduce it to you in detail.

The main causes of lung cancer are:

1. Smoking: It is now recognized that smoking is an important risk factor for lung cancer. Tobacco leaves and smoke contain a variety of ulcer-causing and cancer-promoting agents such as tar and benzophenone. It is estimated that about 85% of lung cancer is related to smoking, and smokers are 12-22 times more likely to develop lung cancer than non-smokers.

2. Family environment: The decoration materials of the house and the fumes produced when cooking contain a lot of ulcer-causing substances. Passive smoking caused by family members smoking can also pollute the family environment. The incidence of lung cancer in women may be related to long-term inhalation of cooking fumes.

3. Occupational carcinogens: Occupational carcinogens include organic arsenic compounds, asbestos, coal, smoke, tar, asphalt, smoke, mustard, dichloromethyl ether, vinyl chloride, nickel smelting, chromium, etc. Those who are exposed to occupational carcinogens for a long time at work have a significantly increased risk of developing lung cancer.

4. Chronic lung diseases: Chronic infections such as chronic bronchitis, viral infections, and fungal infections may increase the risk of lung cancer in smokers. A study jointly completed by several international research institutions confirmed that asthma patients are more likely to develop lung cancer than healthy people, and female asthma patients have a higher risk of lung cancer than male patients.

5. Genetic factors: There is a genetic tendency for lung ulcers. There are many smokers in the population, but only a few of them suffer from lung cancer. Some people suffer from lung cancer because of smoking, while others do not. In addition to the amount of smoking and the length of smoking time, this is mainly related to the physical constitution of the person. Physical constitution is determined by genetics, which is what is often called genetic susceptibility in medicine.

6. Ionizing radiation: Radiation exposure can cause a variety of malignant tumors such as lung cancer. People who are exposed to radiation in their occupations have an increased risk of developing lung cancer. People can also be exposed to radiation in their daily lives, and some house decoration materials also contain substances that can generate radiation. For example, radioactive gas oxygen, which is widely present in human living and working environments, has been announced by the World Health Organization as one of the main environmental carcinogens, one of the main risk factors for human lung cancer, and the second largest factor inducing lung cancer after smoking.

7. Air pollution: With the progress of society and the development of industry, the production and use of many industrial raw materials and products containing carcinogens have increased, which not only increases the number of workers directly exposed to lung cancer, but also aggravates the degree of air pollution caused by carcinogens. The exhaust gas discharged by cars, asphalt used in road and house construction, etc. all contain carcinogens, making air pollution increasingly serious. The incidence of lung cancer in industrially developed countries is higher than that in industrially backward countries, higher in cities than in rural areas, higher in large cities than in medium and small cities, and higher in urban areas than in suburbs. This may be related to the more serious air pollution in cities.

Through the above introduction, I believe you have a detailed understanding of the causes of lung cancer, and I hope it will be helpful to you. If you have other questions related to lung cancer, please consult our online experts or call our consultation phone, and the experts will give you detailed answers. Feihua Health Network wishes you good health!