The treatment effect of lung in situ cancer is generally better, and the effect of radical cure can be achieved through surgery. For example, the 10-year survival rate can reach more than 90%, which is basically called a clinical cure and does not affect life expectancy. But there is no way to predict what the exact life expectancy is. Just as there is no way to predict the life expectancy of a normal person who does not have a tumor, there is no way to predict his life expectancy. It can only be said that after the radical treatment of lung cancer in situ, it can achieve a very good therapeutic result without affecting the life expectancy, and we still have to look at the later side of the treatment, not to say that there will not be any recurrence, but only the chance of recurrence will be very low. If there is no recurrence for more than 10 years, the chance of recurrence may be a little lower than that of a normal person getting lung cancer. Lung cancer in situ usually does not need radiotherapy or chemotherapy after surgery, and regular checkups are enough. The treatment effect is very good, so early detection and early treatment are very important.