Anterior dural sac edge compression, a common descriptive term for CT or MRI, is commonly seen in intervertebral disc herniation, and for compression of the anterior dural sac edge, such as lumbar disc herniation or cervical disc herniation, when the anterior dural sac edge is compressed, you can see on MRI or CT that the anterior dural sac edge is compressed, resulting in a smaller image area of cerebrospinal fluid, which is a This is an imaging manifestation of dural sac anterior edge compression. This is an imaging manifestation of anterior dural sac compression. Clinically, there are usually no neurological symptoms, no signs and symptoms of nerve damage such as numbness, weakness, urinary and fecal disorders, and may only present with neck pain and some symptoms of low back pain, which do not require special treatment.