Lung occupancy for 5 years with no feeling needs to be determined according to the benign or malignant nature of the tumor to decide whether treatment is needed. If the tumor is benign, if there are no obvious symptoms, generally do not need treatment. It is recommended that the patient improve the relevant examination in time to clarify the cause of the disease. Lung occupancy usually refers to occupying lesions in the lungs, which may be related to tumors, tuberculosis and other diseases. Lung space occupation for 5 years without obvious symptoms, may be benign tumors, may also be malignant tumors in the early stage. It is recommended that the patient improve the relevant examination to clarify the benign or malignant nature of the tumor, and decide whether treatment is needed according to the benign or malignant nature of the tumor. Patients can undergo chest X-ray, chest CT scan, tumor marker test, tuberculin skin test, positron emission tomography and other tests to clarify the symptoms under the doctor’s advice. If the tumor is malignant, it needs to be treated as early as possible to avoid delay.