Pain in the middle of the buttocks, also known as sacral pain, clinically the most common cause of sacral pain is due to fall injury to the sacrum, as well as lumbar disc herniation. Sacral pain often occurs in a long time sedentary or fall after the hip landing so that the sacrum by the impact of injury, the sacrum and the surrounding soft tissue damage will lead to sacral pain. There may also be lumbar disc herniation, in the lumbar and sacral 1 disc herniation compression patients, there may be compression of the cauda equina, will appear in the sacral region of the radioactive pain. Patients with lumbar disc herniation are also characterized by lumbar pain as well as lumbar dyskinesia. It is recommended that patients seek timely medical attention to clarify the diagnosis and target treatment.