Frosted glass nodules in close proximity to the pleura are still a risk, and the exact condition needs to be determined by a combination of nodule presentation, clinical symptoms, and puncture biopsy. Benign nodules are basically risk-free; malignant nodules carry some risk. 1. If the nodule has smooth edges, is not lobulated, and the surrounding lung tissue is clear, and disappears gradually with review, it is an inflammatory nodule with a high probability of being benign, and basically has no risk. 2. The nodule itself is accompanied by lobulation, burr, pleural pulling, etc., which are malignant signs. If the nodule is enlarged and solid in the course of review, and malignant cells are found in the pathologic biopsy, it belongs to the condition with higher risk. Subpleural nodules are dangerous and require prompt medical observation and surgical resection under the guidance of the clinician.