Most of the pale flaky fuzzy shadows in the lungs are slightly high-density shadows on imaging examination after inflammation and edema in the lungs are absorbed by the body, or they may be caused by local interstitial diseases or even tumors. 1. Lung infection, such as bronchopneumonia, tuberculosis, bronchiectasis, etc. Inflammatory exudation and edema in the lungs show flaky hyperdense shadow on imaging, and the inflammation and edema can be absorbed and dissipated after giving anti-infective treatment. 2. Interstitial lung disease: interstitial lung disease is a lung disease involving bronchial tubes, perivascular and alveolar intervals, etc. It has many causes, related to infection, immunity, trauma stimulation, etc., and can be manifested as a thin, flaky and fuzzy shadow in the imaging examination of the lungs. 3. Lung tumor: Lung tumor lesions can also be manifested as thin flaky fuzzy shadow in lung imaging. It is recommended to go to the Department of Respiratory Medicine or Department of Thoracic Surgery for further consultation and treatment.