Ground glass nodules generally refer to lung ground glass nodules. If the lung ground glass nodules are benign, they will not affect the survival time, but if they are malignant, the life expectancy after resection needs to be evaluated in relation to the specific type of pathology and TNM staging of the tumor. Lung ground-glass nodule is an imaging concept, refers to the CT layer shows a mild increase in density, presenting a cloudy density shadow, there can be benign lesions and malignant lesions, benign mostly due to pneumonia, tuberculosis, fungal infections and other factors, malignant lesions that is, lung cancer. Generally speaking, benign MG nodules will not affect the life expectancy of patients, and some patients even do not need surgery to remove them. For malignant pulmonary ground glass nodules, if the postoperative pathology confirms non-small cell carcinoma, the prognosis is generally better, with a 5-year survival rate of more than 40% for early and middle stage patients; if it is small cell carcinoma, the metastasis is generally early and the prognosis is poor. Once diagnosed with pulmonary ground-glass nodules, patients are advised to find out the nature of the nodules in time and cooperate with doctors to take relevant therapeutic measures.