Whether treatment is needed for multiple ground-glass nodules that remain unchanged after six months usually depends on the size and nature of the nodules. If the nodules are less than 0.8cm in size and benign, they usually do not require special treatment, while if the nodules are more than one centimeter in size and malignant, they usually need to be treated. 1. Benign: If the size of the nodule is small, less than 0.8cm, and does not cause local pleural invasion or burr sign, after examination, if the condition is stable and the nodule is benign, it usually does not need special treatment, but it is recommended that the patient should have regular rehabilitation examination to observe the changes of the nodule. 2. Malignant: If the size of the nodule is larger than 0.8cm and causes pleural invasion and burr sign, patients are recommended to go to the hospital for localized nodule excision surgery, and after the surgery, they should choose whether or not to undergo chemotherapy or targeted therapy according to their own conditions. It is recommended that patients maintain a good state of mind during the treatment process, do not be overly stressed or nervous, and should go to the hospital in time to consult a physician for guidance if they have any symptoms of physical discomfort.