Emphysema, air sacs in the upper lobe of the left lung, if the lesion is small in extent and has no obvious clinical manifestations in the early stage, and its abnormality can only be detected by X-ray and CT examination, usually no treatment is needed. If the scope of the lesion is large and obvious symptoms appear, medication or surgical treatment can be used. The cause of emphysema is not clear, and smoking is an important risk factor. The pathological changes in emphysema are mainly the destruction of the alveolar walls leading to permanent enlargement of the alveoli and alveolar ducts. Pulmonary air sacs are mostly caused by infection or trauma, leading to alveolar rupture, alveolar fusion, and the formation of pneumocysticercosis. If the scope of emphysema and pneumocysts is small and there are no obvious clinical symptoms, it is necessary to quit smoking and regularly review the chest CT or lung function to observe the change of the condition. If the scope of the lesion is large and there are symptoms such as cough, sputum, wheezing, etc., symptomatic treatment is needed. Generally, aminoglutethimide is used to relieve cough and sputum, and bronchodilators such as salbutamol and tiotropium bromide are used to dilate the airways to relieve wheezing symptoms. Surgical treatments such as herpeticectomy can also be used if there are large pulmonary blisters or air sacs. Surgery such as lung decompensation or lung transplantation can also be taken if indicated. It is recommended that patients with emphysema lung air sacs in the upper lobe of the left lung should go to the hospital for consultation and standardized treatment under the guidance of the doctor, so as to avoid delaying the condition.