Is small cell lung cancer hereditary? It is rare, but the three causes of small cell lung cancer are critical

Small cell lung cancer is affected by genetic factors, is hereditary, and has the characteristics of familial clustering, but it is relatively rare. It is generally believed that the disease is related to smoking, environmental pollution, and other chronic lung diseases.

1. Smoking <br/>Tobacco contains more than 60 chemical substances such as nicotine, which is not good for human health, especially for the lungs. The incidence of small cell lung cancer in long-term smokers is significantly 3 to 4 times higher than that of other normal people.
2. Environmental pollution <br/>Environmental pollution is quite serious, and harmful substances enter the lungs through breathing, affecting the normal function of the lungs, inducing local lesions, and in severe cases, leading to small cell lung cancer.
3. Chronic lung diseases <br/>Some small cell lung cancers are transformed from other chronic lung diseases such as tuberculosis, pneumoconiosis, silicosis, etc. If not treated in time, it may lead to malignant changes in the local lung structure and induce small cell lung cancer.