Among the more than 30 people who visit the clinic once a week, they often get the answer “never come to the hospital” or “never take medication or injections” when asked about their health in the past, with more or less a kind of “pride” in their words. The words were more or less “proud”. But I don’t agree with this statement, because some of them have already suffered from thoracic surgery-related diseases, and some of them have even missed the opportunity of surgical treatment, and even then some of them don’t even believe in the diagnosis of imaging, citing “no feeling” or “no pain” or “no cough”, etc. “no cough”, etc. Most diseases in thoracic surgery, especially lung lesions, do not cause significant discomfort to patients, and if they do have symptoms, they are mostly indicative of mid- to late-stage manifestations, which is why less than 30% of lung cancer patients are able to prepare for surgery as outpatients! That is why the overall 5-year survival rate of lung cancer is less than 20%! The 5-year survival rate of early stage lung cancer patients is 70-80%! The detection of early stage lung cancer lies in the diagnostic ability of clinicians, the advanced degree of clinical examination methods, and the health awareness of the public, especially nowadays when the environment around us is seriously polluted. For the general public, one of the important examinations of health checkups, frontal and lateral chest radiograph (note that it is not chest X-ray!) For special populations, low-dose spiral CT chest scans are required, including at least those with a history of malignancy or family history, long-term smokers or passive smokers or those with occupational exposure, patients with tuberculosis, and those with low immune function. Health awareness is the prevention of disease without disease and the early diagnosis and treatment of disease.