Lung nodule 1.5 cm is often the result of chest CT examination, and it is recommended to carry out surgical treatment. If the examination of chest CT reveals a lung nodule of 1.5 cm and is accompanied by manifestations of malignancy such as lobulation, burr, bronchial insufflation sign, pleural pulling sign, etc., the nodule can be surgically removed first, and then postoperative pathology will be performed to determine the benign or malignant nature of the nodule. If the 1.5 cm nodule does not have the above malignant manifestations, then the nature of the nodule can be clarified by perfecting the lung puncture biopsy and other tests, and then resected if it is a malignant nodule, or followed up for observation if it is a benign nodule. If the nodule is 1.5 centimeters, please follow the doctor’s instructions to improve the relevant examination and treatment.