Patchy ground-glass shadow in the lungs refers to the thin and increased density shadow in the lungs during the imaging examination, which can be seen in bacterial infection, viral infection, fungal infection, tuberculosis mycobacterium infection and other infectious diseases, but also in interstitial pneumonia, lung cancer, mechanized pneumonia and so on. For patients with no obvious symptoms and small diameter of patchy ground glass shadow in the lungs, no special treatment is needed for the time being, and only the change of ground glass shadow can be observed; patients with obvious symptoms can be further examined, such as fiberoptic bronchoscopy, pathological biopsy and so on. To clarify the cause of patchy ground-glass shadow, infectious diseases can be treated with oral medication as prescribed by the doctor, and lung cancer requires surgical treatment, radiotherapy and chemotherapy. Patients with patchy ground glass shadows in the lungs should go to the hospital in time for follow-up and treatment under the doctor’s guidance to avoid further aggravation of the condition.