Emphysema is due to the reduction of airway elasticity of the alveolar terminal fine bronchioles, causing alveolar hyperinflation as well as permanent dilatation of the fine bronchioles and the formation of the tobacco tar, nicotine and other harmful substances will aggravate the degree of elasticity of the airway mucosa weakened, so that the gradual decline in lung function, and make the airway mucosal wall of the cilia activity is weakened, reducing the function of phlegm expectoration, so patients with emphysema are prohibited from smoking. In fact, smoking is a causative factor of emphysema, and if emphysema patients continue to smoke, it will significantly aggravate and accelerate the progression of the disease, resulting in more serious damage. Therefore, it is recommended that emphysema patients quit smoking in time, and pay attention to strengthening exercise to enhance the body’s immunity, and pay attention to minimize the occurrence of respiratory tract infections, so as not to aggravate emphysema. If emphysema occurs, it is recommended to consult a doctor in time and actively treat it under the guidance of the doctor.