Scattered small inflammatory fibrous foci in both lungs generally refer to scattered fibrous foci in both lungs on CT, and most of them are old lesions caused by chronic inflammation. In the clinical chest CT sometimes found in both lungs there are a small number of fibrous foci phenomenon, the above fibrous foci are mostly old lesions, may be caused by chronic inflammation and other related reasons. Generally, they do not cause obvious clinical symptoms and do not require special treatment. However, if there are symptoms such as cough, sputum, chest tightness, etc., when chest CT reveals a few scattered inflammatory fibrous foci in both lungs, it is necessary to consult a doctor in time to investigate whether there is an acute infection or other causes. Therefore, small inflammatory fibrous foci in both lungs need to go to the Department of Respiratory Medicine, and take appropriate measures according to the specific conditions.