A 2cm mixed ground glass nodule has a higher likelihood of being a malignant nodule and is more dangerous, and should be treated as soon as it is detected. Mixed ground-glass nodules are lung nodules with both solid and ground-glass components, with a high malignancy rate of about 64%, and a nodule size of 2cm, which is a large nodule, further increasing the likelihood of malignancy. Clinical high suspicion of malignant nodules, it is recommended percutaneous puncture biopsy or direct surgical resection, and then according to the specific pathology to decide the follow-up treatment. Of course, 2cm mixed ground glass nodules are not always malignant lesions, but may also be caused by benign diseases such as pneumonia, tuberculosis, and charcoal deposition, which are generally not serious. A few patients with severe pneumonia or tuberculosis have serious conditions. It is recommended that the patient should consult the doctor in time, continue to improve the relevant examinations, have the condition evaluated by a professional physician, and follow the doctor’s instructions to carry out the appropriate treatment.