Emphysema is a lung disease caused mainly by the destruction of alveolar structure and function, and may present with symptoms such as shortness of breath, dyspnea, cough and sputum. The main symptom of emphysema is dyspnea, which is usually more obvious after activities, such as climbing stairs, brisk walking, jogging, etc. As the disease progresses, shortness of breath may occur during daily activities or in a resting state, such as dressing, eating, sitting still, etc. When complicated by respiratory infections, coughing, coughing up phlegm, and aggravation of dyspnea may occur. Emphysema may also lead to spontaneous pneumothorax, chronic obstructive pulmonary disease, respiratory failure and other complications, it is recommended that patients go to the hospital in a timely manner, under the guidance of the physician to carry out the relevant treatments, the condition of the stabilization of the appropriate physical exercise, you can usually practice abdominal breathing.