Solid nodule 6mm turns into milled glass nodule 6mm, inflammatory nodule is more likely, but cancerous nodule can’t be excluded. 1. Inflammatory nodule: mainly refers to infectious pneumonia, which is usually related to bacteria, fungi, viruses and other microorganisms, leading to repeated stimulation of lung tissues by germs and causing lung damage, with inflammatory secretion, solid nodules can be found through examination, which may be transformed into ground-glass nodules after inflammation is gradually eliminated and the nodules are reduced in size. 2. Cancerous nodules: For example, early stage lung adenocarcinoma, which is not serious at present and the condition has been controlled, may change from solid nodules to ground-glass nodules. When solid nodules are detected, attention should be paid to them and regular checkups should be conducted to understand the situation. If cancer is suspected, pathological biopsy is needed for diagnosis and analysis, and then targeted treatment should be carried out.