Air bubbles on the lungs mostly refer to pulmonary blisters, which usually do not heal on their own. Pulmonary blisters are imaging changes found on a chest radiograph or CT scan. Pulmonary blisters form when there is increased tension within the alveoli, causing the alveolar walls to rupture and multiple alveoli to fuse together and form. The formation of pulmonary blisters is an irreversible change, so they usually do not heal on their own. There are two types of pulmonary blisters: congenital and acquired. Congenital pulmonary blisters are most often seen in children and are caused by congenital abnormalities in tracheal and bronchial development, cartilage dysplasia causing valve activation, etc., while acquired blisters are most often seen in elderly patients and are often associated with chronic bronchitis and emphysema. Asymptomatic pulmonary maculopathy does not require treatment and observation is sufficient; patients with chronic bronchitis or emphysema should be treated mainly for the primary disease; antibiotics should be required for secondary infection.