Dural sac compression is a condition in which the dural sac is compressed by an external force, resulting in thinning and narrowing, which may cause nerve damage or poor cerebrospinal fluid flow. Dural sac compression is an expression used in medical imaging reports to describe external forces such as disc injuries or prolapsed discs that cause the dural sac to thin and narrow, which may cause severe nerve compression and poor cerebrospinal fluid flow. The role of the dural sac is to protect the spinal cord tissue in the body. Compression of the dural sac may cause low back pain, pain in the limbs, numbness, and other uncomfortable symptoms. Poor circulation of cerebrospinal fluid may cause headache and dizziness. Dural sac pressure should be timely to the regular hospital, the doctor according to the symptoms, signs and auxiliary examination to determine the specific condition, according to the condition to give the correct treatment.