The prognosis of mild emphysema at the age of 25 is usually not affected and the life expectancy is similar to that of a normal person if positive responses are given, including elimination of the cause, changes in lifestyle habits, appropriate exercise and nutrition. Mild emphysema at the age of 25 does not usually affect life expectancy, and the prognosis depends on the degree of attention given to it by the patient himself. 25 years of age is a relatively young age, and mild emphysema does not usually affect life expectancy if actively cared for under the guidance of a respiratory physician, with increased exercise and avoidance of lung infections, and the patient can survive with the disease for a long time. If not treated aggressively and the patient continues to smoke, as the disease progresses, it may cause a decline in lung function and lead to related complications, thus affecting the patient’s survival time. The vast majority of young patients with mild emphysema can survive for 40-50 years or longer if managed properly. In addition, patients with emphysema need to keep warm, avoid colds, quit smoking, avoid dust and chemical gas pollution, and avoid lung infections in their lives.