Three misconceptions affect lung cancer prevention and early detection Every November is Global Lung Cancer Awareness Month. Figures from the Ministry of Health’s Third National Population-based Cause of Death Survey show that lung cancer mortality in China has increased by 465% in 30 years. Worldwide, the incidence of lung cancer is increasing year by year, and the mortality rate ranks first among malignant tumors. Experts point out that there are three misconceptions in daily life that can affect the prevention and early detection of lung cancer. Every November is the Global Lung Cancer Awareness Month. Figures from the Ministry of Health’s Third National Population-based Cause of Death Survey show that lung cancer mortality in China has increased by 465% in 30 years. Worldwide, the incidence of lung cancer is increasing year by year, and the mortality rate ranks first among malignant tumors. Experts point out that there are three misconceptions in daily life that can affect the prevention and early detection of lung cancer. Ignoring the harm of “second-hand smoke” There are hundreds of harmful substances in tobacco, and a total of 60 to 70 of them are known to be related to lung cancer or other tumors. Zhi Xiuyi, director of the lung cancer treatment center at Capital Medical University and director of thoracic surgery at Xuanwu Hospital, said that the relationship between smoking and lung cancer is basically in place, but people still do not pay enough attention to the hazards of passive inhalation of “second-hand smoke” and “third-hand smoke” that remains on clothes, walls, carpets, furniture and even on the surface of hair and skin after smokers have “swallowed the fog. He said the incidence of smoking-related non-small cell lung cancer and lung adenocarcinoma has increased significantly worldwide in recent years. With the promotion of low-tar smoke, smokers inhale smoke deeper, active and passive smoking both make the harmful substances in tobacco with PM2.5 particles deep into the alveoli, which is one of the reasons for the high incidence of lung adenocarcinoma in recent years. Zhi Xiuyi introduced, at present, Beijing, Shanghai, Shandong and Guangzhou, Harbin and other places have introduced some local regulations to ban smoking in indoor and public places. I hope more people will exercise their right to protect their health and say “no” to “second-hand smoke” and “third-hand smoke”. Wrong use of range hoods The kitchen smoke pollution caused by frying and baking in Chinese cooking is also an important cause of excessive indoor PM2.5. There is a lot to learn about the purchase, installation and use of range hoods. Early detection of lung cancer can be effectively treated by minimally invasive treatment means. Central type lung cancer with tumor located in tracheobronchus mostly has clinical symptoms, such as irritating cough, blood in sputum or blood sputum, while early peripheral type lung adenocarcinoma has no symptoms, which is a serious threat to human health.