CT is more accurate in showing the bony structure of lumbar disc herniation. CT has high resolution for bony aspects, and can show the location, shape, size, and direction of herniation of the intervertebral disc, as well as the presence or absence of calcification of the herniated material, the presence or absence of congenital stenosis of the bony spinal canal, hyperplasia of vertebral small joints, and hypertrophy and calcification of the ligamentum flavum, and neurogenic lesions, and other kinds of information. Magnetic Resonance Imaging (MRI) has a high resolution of soft tissues and can directly show the degenerative condition of intervertebral discs and nerve compression. The principles of CT and MRI imaging are different, with CT showing better bony structures and MRI showing better soft tissues. Lumbar disc herniation combined with calcification does not show up clearly on MRI, while CT can show whether it is combined with bony hyperplasia or calcification. The combination of the two can provide a better objective judgment of lumbar disc herniation, which is conducive to later treatment. If a lumbar disc herniation occurs, it is recommended that the patient go to the hospital in time for the doctor to determine which examination is suitable and to carry out standardized treatment as early as possible.