Pulmonary occupying lesion is actually an imaging term, mainly when examining chest X-ray or chest CT, an extra thing is found in the lung, mostly in the form of a circle or similar circle, occupying lesions usually have benign and malignant, judging benign and malignant according to the patient’s symptoms, medical history, high-risk factors, and the size of the occupying lesion, density, whether there is lobulation, whether there is burr, whether there is pleural pull, etc. Multifaceted, comprehensive judgment. If the examination suggests the presence of occupying lung lesions, we must pay attention to it and go to a respiratory specialist or oncologist for further examination to clarify the nature of the occupying lesions.