Question
Is it possible to develop lung cancer without smoking or drinking, even if there are no unhealthy habits and no coughing symptoms? What should one do in such a situation?
Answer
Smoking is just one of the causes of lung cancer, with other potential factors including genetics, physical and chemical factors, and medication-related factors. Based on the description provided, it is not possible to determine whether lung cancer is present, and it is recommended to undergo further bronchoscopy. Additionally, emotional stability and relaxation are also important. It is common for human bodies to have oncogenes and tumor suppressor genes. When the balance between the two is disrupted, cancer may occur. In summary, lifestyle and environmental pollution may be triggers, but they are not deterministic factors.