Bilateral lung ground-glass nodules refer to the presence of lung nodules containing ground-glass components in both lungs. It is difficult to determine the benign or malignant nature of the nodules, and malignant tumors cannot be excluded as the cause. A pulmonary nodule is a lung mass of ≤3 cm detected by chest CT or other imaging studies. A ground-glass nodule is a nodule with ground-glass content, i.e., a cloudy, slightly dense shadow on chest CT. Milled glass nodules may be caused by benign diseases such as pneumonia and charcoal deposition, or by malignant tumors such as bronchopulmonary cancer. Mixed ground glass nodules have a higher risk of malignancy, while pure ground glass nodules have a slightly lower risk of malignancy. The likelihood of benign or malignant nodules can also be initially assessed based on the size, morphology, and margins of the nodule. The nature of malignancy cannot be excluded means that it is difficult to determine the nature of the nodule according to the imaging results, and the possibility of lung cancer cannot be excluded. It is recommended that the patient should consult the doctor in time and follow the doctor’s instructions for further examination or treatment.