How scary is lung cancer? Overall, lung cancer has a high incidence rate, high mortality rate, poor efficacy and low cure rate. Currently, worldwide, including us in China, lung cancer is the number one killer among systemic malignant tumors, with the highest incidence rate and highest mortality rate. Among the top ten malignant tumors often mentioned in China, the incidence rate of lung cancer has risen to the first place later, and its incidence rate is still on an increasing trend. Lung cancer has a high mortality rate, which is the first among the top ten malignant tumors. The overall 5-year survival rate of lung cancer is only about 10%, that is to say, for every 100 newly discovered lung cancer patients every year, after five years, including those who have taken various treatments such as surgery, chemotherapy and radiotherapy, only about 10 people are still alive, and the other 90% “leave” within five years, almost The other 90 percent “leave” within five years, about 18 per year. Overall, lung cancer has a poor treatment outcome and poor prognosis.