Small bright spots on lung examination suggesting calcified lesions are predominant, and are commonly associated with previous infection with tuberculosis, etc. Long-term smokers and people exposed to dust, including masons, coal miners, etc. Due to long-term inhalation of silica dust, calcified lesions tend to form in the lungs. Some cases of severe lung infections, including severe pneumonia, lung abscess, and bronchiectasis with infection. After aggressive anti-infection treatment old calcified lesions can remain in the lungs, and white calcified dots and small bright lesions can be found on chest CT or chest radiography. In conclusion, if there are small bright spots in the lungs, they are usually indicative of old chronic lesions. If there are no clinical symptoms, no special treatment is needed, and the patient needs to be carefully questioned about his or her previous disease and followed up dynamically with chest CT. Therefore, there is no need to be nervous about small bright spots in the lungs, which are mostly benign, chronic calcified focal changes.