CT of the lumbar spine mainly examines the intervertebral discs to see if there is any protrusion of the discs. In addition to this, it can also detect osteophytes, slipped vertebrae, spinal stenosis, tumors in the vertebral body or spinal canal, and compression fractures of the vertebral body. In addition to the lumbar spine, there are also kidneys, some intestinal tubes and some other tissues in the actual lumbar tissue structure, and kidney lesions such as kidney cancer, kidney stones, abdominal tumors, and lumbar muscle lesions can also be diagnosed through CT examination. Therefore, when patients visit the doctor, they need to give a detailed medical history to facilitate further examination to confirm the diagnosis.