Bone pain in the middle of the breast in general, the common causes are mainly the following: a. Sternum fracture, most often seen in patients who suffer from car accident injuries caused by sternum fracture, can appear obvious pain symptoms. Patients through the external application of drugs and analgesics can not relieve chest pain, need to improve the local X-ray or CT examination as soon as possible to assess the degree of injury to the sternum, as soon as possible surgical treatment to relieve chest pain. Second, elderly female patients, due to breast malignant tumor invasion to the sternum caused by bone destruction, will cause pain in the sternum. At this time, the patient’s condition belongs to the terminal stage of the tumor, and it is suggested that the patient should undergo radical treatment of breast malignant tumor plus lymph node dissection, combined with local radiotherapy and systemic chemotherapy to inhibit the growth of cancer cells in the body and prolong the patient’s life.