Ground glass-like change refers to the chest CT examination or X-ray examination, the lungs present an abnormal high density shadow, commonly found in inflammatory lung diseases, tumor diseases, etc., need to be analyzed with specific imaging and the patient’s own condition. 1. Inflammatory diseases: due to bacterial, viral infection caused by intra-alveolar inflammation, this glassy change of internal density uniformity, small area, under the guidance of the doctor to carry out bacterial, viral anti-infection treatment, can be restored. 2. Tumor disease: the internal density of glassy changes is not uniform, the edge is not smooth, there are burrs, etc., need to carry out puncture biopsy, improve the relevant examination to clarify the nature of the lesion. If the patient has a history of smoking, family history of tumor, if necessary, surgical resection is needed to clarify the nature of the lesion. Glassy changes can also be seen in other diseases, and it is recommended that patients seek medical attention as soon as possible to avoid delaying their condition.