The seriousness of a 6mm ground-glass lung nodule should be determined by the nature of the nodule, which is usually not serious if it is benign, but needs to be taken seriously if it is malignant. If the nodule is malignant, it should be taken seriously. If the nodule is benign, there is usually no significant discomfort and it does not adversely affect life expectancy or quality of life. In this case, it is usually advisable to follow the doctor’s instructions and undergo a repeat thin-layer chest CT. If the nodule does not increase in size, it can be left untreated for the time being, but regular follow-up is still required. Secondly, if the lung ground glass nodule is caused by lung infection, anti-infection treatment should be carried out according to the cause of the disease, and then review. Common medications include oseltamivir, penicillin, and voriconazole. When the ground glass lung nodules are malignant nodules, it is a serious situation. 6mm malignant nodules in the lungs, it is recommended that early surgical treatment, generally a better prognosis, such as non-small cell lung cancer preferred radiotherapy treatment. Ground glass lung nodule is a kind of imaging manifestation, it is recommended to find out the cause as soon as possible after discovery, and not to delay the condition.