The mortality rate of lung cancer varies from region to region. In China, the average mortality rate of lung cancer may be about 40 per 100,000 people. In major cities such as Tianjin or Shanghai, the mortality rate of lung cancer may be slightly higher than the average, while in other rural areas, the mortality rate of lung cancer may be lower than the average, but it is also related to statistical errors. For example, although the proportion of small cell lung cancer is relatively low, accounting for about 15%-20% of all lung cancers, it is highly malignant, prone to recurrence and metastasis at an early stage, and the treatment effect is not good, so the mortality rate is higher. In the case of non-small cell lung cancer, there may be more treatment options to choose from, and long-term survival is possible if comprehensive and effective treatment can be obtained.