Taiwanese male star Yan Zhengguo passed away from pulmonary adenocarcinoma, less than 1 year after his diagnosis. According to an analysis by Dr. Li Yu Chung, Jacky of the United Cancer Centre of Hong Kong, the fatal rate of lung cancer in Hong Kong is 66%, with 5,707 people diagnosed each year. Detailed description of 6 high-risk persons, 3 warning signs, 4 treatment options and survival rates. The treatment rate in the first phase is 90%, and early screening is the key. Provide targeted therapy, immunotherapy and LDCT lung cancer screening services.