Lung alveoli 14mm in the anterior endobasal segment of the lower lobe of the left lung are generally not serious. Lung alveolus that is, pulmonary blisters, is a variety of reasons lead to alveolar pressure rise, alveolar wall rupture, alveolar fusion with each other to form a diameter of more than 1cm of the air-containing cystic cavity, 14mm pulmonary blisters volume is small, generally no obvious symptoms, you can continue to observe, not to be dealt with for the time being. If the 14mm pulmonary herpes gradually increase in size, and the patient shows symptoms of chest tightness, cough, or chest pain, shortness of breath, or even hemoptysis due to sudden change of position or strenuous activities, consider pneumothorax or hemopneumothorax caused by rupture of pulmonary herpes, and should actively seek medical treatment, and follow the doctor’s instructions to perform surgical resection of the pulmonary blisters and drug treatment. In daily life, patients with pulmonary alveolus 14mm in the anterior endobasal segment of the lower lobe of the left lung should pay attention not to smoke and drink excessively, as well as not to overwork, not to eat spicy and stimulating food, should go to the hospital regularly for review, and reduce the number of colds.