X-rays are the most basic examination, and the lumbar radiographs are usually taken orthogonal and lateral, costing about$100, and they can show the height of the vertebrae, whether they are accompanied by fractures, whether the curvature of the lumbar spine is accompanied by occult spina bifida, whether there is damage to the vertebral roots, etc. CT is an effective supplement to plain films, and it can not only image in two dimensions, but also in the horizontal plane. CT can show whether there is a herniated disc, whether there is occupancy in the spinal canal, whether there is stenosis and whether there is vertebral slippage, etc. Magnetic resonance is another type of examination, which can not only show the coronal and sagittal plane, but also can be imaged from the water plane. Magnetic resonance is more advantageous for the visualization of intervertebral discs and nerves in the spinal canal, and is often used to check whether there is a herniated disc, whether there is a tumor, whether there is an occupancy in the spinal canal, etc.