The presence of white spots in the lungs is actually detected by imaging examinations such as X-ray and CT of both lungs in a row, which is a high-density form of imaging. It is commonly caused by inflammatory reactions in the lungs, such as viral, bacterial, mycoplasma, chlamydia, rickettsia, protozoa, leptospira, and other pathogens that cause the mucosa of the lungs to appear to have varying degrees of congestion, edema, and exudation of inflammatory secretions. This inflammatory reaction causes white spots in the lungs, which are manifested in the pathological manifestations of the images. Blood tests and sputum culture of pathogens can be taken to clarify the cause and provide timely treatment.