Laboratory tests, imaging tests, and pathologic tests are needed before surgery for ground glass nodules. 1. Laboratory tests: including blood routine, sputum examination, liver and kidney function, lung tumor markers, blood sugar and coagulation function. 2. Imaging examination: including cardiac ultrasound, lung enhancement CT, bone scanning, and cranial magnetic resonance examination. 3. Pathologic examination: Pathologic examination through puncture biopsy to clarify the benign or malignant nature of the nodule. This is a non-essential item. Before performing surgery for ground-glass nodules in the lungs, the location, size and shape of the ground-glass nodules are usually observed through laboratory tests and imaging tests, and a specialized doctor will make a preliminary diagnosis based on the examination report. If you want to clarify whether the ground-glass nodule has malignant lesions, you have to further cooperate with your doctor to conduct pathology examination. Once found to be malignant nodules, surgery should be performed as soon as possible.