Pain in the middle of the two chests is generally clinically common for the following reasons: a. Patients with malignant lung tumors can suffer from painful symptoms in the middle of the two chests because the tumor cells have invaded the pleura or muscle layer. Patients can improve the enhanced CT examination of the lung to clarify the location and size of the tumor lesion, and perform resection of the primary tumor plus lymph node dissection as soon as possible to kill the tumor cells in the body, prolong the life of the patient and reduce the pain symptoms. Elderly female patients may suffer from painful symptoms in the middle of the two chests because the malignant tumor of breast invades the muscle layer of chest wall and subcutaneous nerves. Patients can undergo radical treatment of breast malignant tumor as soon as possible after the nature of the lesion is clarified by perfecting breast ultrasound, magnetic resonance imaging or mammography examination. After surgery, combined with local radiotherapy and systemic chemotherapy, the pain symptoms in the chest can be reduced.