There is no 70 year old pulmonary alveolus that heals itself. Pulmonary alveoli is an irreversible lung lesion, often closely associated with other lung diseases, difficult to self-heal, there is no effective drug treatment. When the alveoli are small in size and number, patients often have no obvious symptoms; when the alveoli are large in size or multiple, they often cause chest tightness and shortness of breath. Patients can improve diaphragm function, pulmonary ventilation, arterial blood gas status and blood rheology by quitting smoking, respiratory function training and strengthening physical exercise to improve the symptoms of chest tightness and shortness of breath caused by pulmonary alveoli. As pulmonary alveolar rupture can cause spontaneous pneumothorax and hemopneumothorax, which can threaten the life of the patient, it is recommended to go to the hospital in time after checking out pulmonary alveoli, and to carry out regular treatment with the help of doctors, so as to avoid serious complications caused by rupture of pulmonary alveoli.