5mm ground-glass nodule is not a big ground-glass nodule, if the patient has no clinical symptoms, it can be left untreated for the time being, and regular review can be done; if the patient has clinical symptoms such as chest pain, chest tightness, etc., it is necessary to carry out surgical resection as well as pathologic biopsy to clarify the nature of the nodule. 1. No clinical symptoms: right lower lung pleural 5mm glass fibrous nodule does not meet the surgical indications, if the patient has no clinical symptoms, no treatment, regular review and close observation of its changes can be; 2. Clinical symptoms: if the patient has chest tightness, chest pain and other discomforts, even if the nodule is relatively small, it is necessary to perform surgical resection and pathological biopsy of the resected tissues to clarify the nature of the nodule, and further radiotherapy, chemotherapy and other treatments are needed if necessary. If patients have doubts, they can go to the Department of Thoracic Surgery or the Department of Respiratory Medicine in regular hospitals, communicate actively with the doctors, and choose appropriate treatments with the help of the doctors in order to avoid further development and deterioration of the disease.