When there is a lumbar disc herniation, CT examination can be performed in accordance with the doctor’s prescription to observe the prolapse of the nucleus pulposus of the herniated disc, and at the same time, it can clarify whether it is a central herniation or a lateral herniation, so it is a more accurate examination. Lumbar disc herniation is often associated with varying degrees of degenerative changes in the lumbar spine, which may lead to rupture of the annulus fibrosus of the intervertebral discs and prolapse of the nucleus pulposus from the ruptured area due to the action of external factors. This causes the adjacent spinal nerve roots to be irritated or compressed, resulting in lumbar pain and a series of clinical symptoms such as numbness and pain in one or both lower limbs. CT examination can clearly show the size, location, shape, nerve root and dural sac compression and displacement of the herniated disc, which is the most commonly used means of examination, and is therefore more accurate. It is recommended that patients with lumbar disc herniation go to the hospital for CT examination in time, and follow the doctor’s instructions for treatment after clarifying the cause of the disease.