Smoking is generally the main cause of lung cancer

Smoking is generally the main cause of lung cancer. Examples show that smokers have a higher incidence rate than ordinary people. So what are the other causes of lung cancer ? In response to this question, the following authoritative experts will give you a detailed answer. The specific content is as follows.

The causes of lung cancer are generally as follows:

1. 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. The incidence of lung cancer in heavy smokers is even higher, 20 times higher than that of non-smokers.

2. 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 combustion of oil, coal, internal combustion engines, and asphalt road dust produces harmful substances such as benzopyrene carcinogenic hydrocarbons that pollute the atmosphere. Therefore, this is also one of the causes of lung cancer. 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.

3. Occupational factors are also the cause of lung cancer. 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. These are the causes of lung cancer.

4. Chronic lung diseases such as tuberculosis, silicosis, and pneumoconiosis can coexist with lung cancer. The incidence of these lung cancers is higher than that of normal people. In addition, chronic inflammation of the lung bronchi and pulmonary fibrosis scar lesions may cause squamous metaplasia or hyperplasia during the healing process. On this basis, some lung cancer patients may develop into cancer.

The above is the explanation given by experts on the cause of lung cancer. I hope it can help you answer your questions. Experts suggest that some diseases have no early symptoms or are not obvious. For your health, the best way is to have regular physical examinations to detect the disease early and prescribe the right medicine.