Patients with pain at the root of the neck attached to the clavicle have the following common clinical causes: a. Clavicle fracture. The fracture of the clavicle is caused by a fall during strenuous activity, which can cause the pain at the neck, accompanied by typical signs such as restricted movement, inward movement of the affected arm, and the healthy arm holding the affected arm. The cause of the clavicle fracture can be clarified by local X-ray examination, and surgery can be performed as soon as possible to reduce the local pain symptoms. Patients with lung malignant tumor may have pain at the root of neck and clavicle due to the invasion of tumor cells into the pleural nerve of chest wall. Lung malignant tumor removal plus lymph node dissection can be performed as soon as possible, and patients with earlier disease can achieve better treatment effect.