Emphysema will improve after quitting smoking. Emphysema is due to chronic inflammation of the airways, such as chronic bronchitis, and long-term inflammatory secretion stimulation will cause pathological changes in the airway mucosa, and the elastic retraction force of the alveoli will decrease, at which time the amount of residual air in the airways will increase, forming progressive aggravation of expiratory dyspnea. Patients who smoke will be affected by these harmful substances of tobacco, such as tar and nicotine, which will make the damage to the airway mucosa more obvious, and make the pathological changes in the airway more serious, and the symptoms of dyspnea will be more severe. After quitting smoking, the factors that damage the airway will be reduced, which will slowly relieve the symptoms of emphysema and the condition will gradually improve.