Whether surgery on the lingual segment of the upper lobe of the left lung is difficult or not is mainly determined in conjunction with the condition of the lesion itself. If the lesion is large, close to the midline, and poorly demarcated from the mediastinum and other tissues, surgery is difficult; if the lesion is small and located in the periphery of the lung tissue, surgery will be relatively simple. The anterior border of the left lung has a relatively obvious curved depression called the cardiac notch, and below the cardiac notch there is a protrusion, shaped like a tongue, called the tongue segment of the left lung. The tongue segment of the upper lobe of the left lung is better located and is simpler to resect compared to other lung segments. Clinical lung surgery, mainly for lung tumors, the lesion size is relatively large, and the mediastinum is not clearly demarcated, the operation is more difficult, it is easy to cause unclean conditions or damage to the surrounding important tissues. Lesions located in the periphery of the lung tissue, the volume is relatively small, relatively speaking, the probability of damage to major organs will gradually reduce, part of the surgery can be treated by minimally invasive surgery surgery, relatively simple. The discovery of the tongue segment lesion of the upper lobe of the left lung accompanied by obvious cough, chest pain, need to consult a doctor in time to observe, confirm the diagnosis of the disease, under the guidance of the clinician to carry out standardized treatment, to avoid causing delays in the condition.