Mild emphysema needs to be treated, and its further progression to severe emphysema can be delayed or prevented through early intervention. Mild emphysema can be treated at an early stage through life interventions, such as smoking cessation, proper breathing exercises, and respiratory exercises. It is important to actively prevent and treat respiratory infections and avoid cold and flu. If lung function test suggests obstructive ventilatory dysfunction, medications such as long-acting bronchodilator tiotropium bromide, formoterol, etc. should be used under doctor’s guidance to improve their airflow limitation and alleviate the rate of emphysema progression. If not treated aggressively, hypoxemia or even respiratory failure may occur, which is life-threatening. The mild decline in lung function in mild emphysema is irreversible and cannot heal itself. Therefore, it is necessary to seek timely medical attention to assess the severity and scope of the disease, so as to achieve early diagnosis and treatment to avoid further progression of the disease.