A lung ground-glass nodule of 8 mm without other symptoms is not considered serious. If the edges are blurred, accompanied by burrs, vacuolar signs, etc., it may be more serious. If the lungs are 8mm, most of the nodules are benign and not serious, but the possibility of malignant nodules cannot be completely excluded. Regular checkups should be conducted to observe the size and morphology of the nodules, such as whether they have become larger, whether the edges are clear, and whether there are burrs or vacuolar signs. If the lung ground-glass nodule is enlarged or accompanied by burrs or cavities, it is more serious and should be punctured and biopsied as soon as possible. If the pathological diagnosis through puncture biopsy is malignant nodule, such as lung cancer, we should cooperate with the professional doctor as soon as possible for surgical resection treatment, such as thoracoscopic surgery. Therefore, there is no need to worry too much about lung ground glass nodule 8mm, and it is recommended to follow up and review. Once abnormal changes are found, we should cooperate with professional doctors to carry out standardized treatment as soon as possible.