Bone scan has metabolically elevated foci in the ribs, but chest enhancement CT is normal, which indicates that the internal local blood is abundant and the cellular metabolism is active, mainly suggesting that the ribs are caused by the problems of the ribs themselves, and the causes of the corresponding conditions are as follows: 1. Rib fracture: after fracture, there will be local tissue repair, and the process of repair will be accompanied by active proliferation of tissue cells, which will further lead to related manifestations. 2. Rib tumor: the most common one is bone metastasis, the cell metabolism of the tumor tissue itself is more active than that of the neighboring tissues, and it will be accompanied by cell proliferation, which will lead to metabolic increase. 3. Infectious lesions: when there are infections in and around the ribs, there will be capillary expansion and infiltration of inflammatory cells around, which will further lead to local metabolism, and metabolic increase will occur. Clinical examination found that the ribs metabolic foci, need to consult a doctor in a timely manner, comprehensive judgment of the specific causes of the disease, and standardized treatment under the guidance of the clinician, to avoid causing delays in the condition.