The first physical examination found mixed ground glass nodules, if there are no obvious symptoms, most of them are benign nodules, usually regular review, without special intervention; if malignant lesions are suspected, further examination is needed to clarify, and timely surgical treatment. 1. Benign nodule: It may be caused by inflammation, or calcium deposition caused by other diseases, resulting in ground glass nodule. When the diameter of ground glass nodule is less than 5mm and there is no clinical symptom, it is generally considered benign nodule and can be examined regularly. If the nodule becomes smaller or disappears, or if there is no change, no special treatment is needed. 2. Risk of malignant transformation: when the mixed glass nodule is larger than 5mm, especially larger than 10mm, malignant transformation may occur, or when the lesion is found to be larger in dynamic review, attention should be paid to it, and surgical treatment should be taken as soon as possible. It is recommended to go to the hospital in time for the first physical examination of mixed glass nodules and take appropriate treatment measures according to the doctor’s instructions.