Chronic obstructive pulmonary emphysema, which is actually incorrect, is called chronic obstructive pulmonary disease. Often said slow obstructive pulmonary, often called COPD in English, clinical staging is mainly based on the severity of the disease, now called A, B, C, D group, distinguish the following: 1, the simplest is to determine the symptoms, such as how well you walk, how well you eat, how much sputum, walking wheezing, have an impact on sleep; 2, dyspnea index, followed by walking 100 meters, can catch up or can not walk, wheezing in bed; 3, lung function, the FEV1/FVC value 30%, 50%, 80%, for the symptoms and signs just mentioned, including lung function to clarify the stage A, B, C, D, according to each stage to give the appropriate drug treatment. TCM will divide the acute stage and remission stage. In the acute stage, there will be phlegm-heat obstruction of lung, phlegm-damp obstruction of lung, cold phlegm obstruction of lung, and phlegm-stasis obstruction of lung. In the remission period, there will be deficiency of lung qi, deficiency of spleen qi, and deficiency of kidney qi. Therefore, whether it is the western medical treatment or the Chinese medical treatment of slow obstructed lung, a very clear typing can be done and the treatment can be carried out accordingly. Pathological typing of emphysema: According to the parts of the lung lobules involved, emphysema is divided into three types: central lobular type, whole lobular type and mixed type in between.