Ground glass nodule 8mm with unclear boundary does not mean lung cancer, ground glass can also be caused by inflammation, bleeding in the lungs, etc. Some ground glass nodules can be malignant into lung cancer. In clinic, 8mm ground glass nodule has surgical indication, which needs to be decided by doctor according to symptoms and nodule morphology. The following treatments can be carried out: 1. Regular review: patients with ground-glass nodules must undergo regular review and HRCT scanning of the chest. If the lesion dissipates or shrinks significantly during the follow-up, it is considered to be inflammation, and if the density of the lesion becomes solid during the follow-up, it suggests that it is a malignant lesion. 2. Puncture biopsy: if accompanied by cough, chest pain and other symptoms, you can first puncture the nodule tissue sent to the pathological examination, to clarify the nature of the lesion, according to the pathological results of the decision to further treatment, such as malignant consideration for early lesions; if benign will not be staged. 3. Surgery: Patients with ground-glass nodules larger than 8mm, with a tendency to grow during follow-up, or with multiple signs of malignancy need to undergo surgery. Patients with ground-glass nodules are advised to consult a doctor in time, have regular checkups, and have appropriate treatments under the doctor’s guidance.