Lung ground glass nodules single or multiple and good or bad relationship is not a key factor in determining the good or bad, mainly and ground glass nodule size, morphology and density. Lung ground glass nodules, if the nodule lung diameter is greater than 1 cm, then the degree of malignancy of lung ground glass nodules increased, lung ground glass nodule edge with lobulation or edge roughness, the presence of vacuolar sign, these lung nodule morphology differences, all suggest that the ground glass nodule may be a malignant tumor situation. Lung ground glass nodules, if the presence of pleural depression sign, suggesting that malignancy may increase, so the decision is more good or bad is the size of the lung nodules more than 1 centimeter of malignancy increased, 1 centimeter or less lung nodules to consider the possibility of benign tumors, you need to go to the hospital for further examination of the chest CT enhancement, clear diagnosis, and then actively cooperate with the doctor’s treatment. Multiple nodules in the lungs are more risky than a single nodule, and multiple nodules have the risk of malignant changes. Patients should go to the hospital in time if they usually feel unwell, and should not be careless so as not to delay the treatment.