Pulmonary alveoli are common benign diseases in the clinic, and some of them are congenital and mostly not serious. Acquired alveoli caused by certain factors can affect normal life and are more serious if not actively treated. Congenital alveoli usually have no obvious clinical symptoms, and these alveoli do not affect the body much and do not require special treatment. Patients with pulmonary alveoli caused by long-term smoking or being in a smoky environment for a long time mostly have obvious clinical manifestations such as coughing, asthma and other discomforts, and they need to quit smoking or leave the polluted environment to avoid further expansion of the alveoli or causing other new lung diseases. Due to certain infections caused by large pulmonary alveoli, early infection can be controlled by applying antibiotics, which can prevent the increase of large pulmonary alveoli to increase, if the treatment is not timely, the situation may worsen. Daily life must be careful not to smoke, drink alcohol, often smoking will produce greater stimulation of the lungs, serious cases can lead to aggravation of the disease, serious lung damage or secondary infection. When the weather changes, pay attention to keep warm and wear a mask when you go out to avoid cold air stimulation.