Compression of the cervical dural sac may cause dizziness, difficulty in swallowing and unsteady walking. 1. Dizziness: After the cervical dural sac is compressed, the blood supply to the head may be affected, and the patient may experience dizziness, which may be accompanied by other symptoms such as nausea and vomiting. 2. Difficulty in swallowing: when the cervical dural sac is compressed, it may compress the nerve roots around the cervical vertebrae, resulting in difficulty in swallowing. 3. Unsteady walking: If the cervical dural sac is compressed for a long time, it may also affect the cerebellar function, resulting in unsteady walking and even other phenomena such as limb weakness. The above is the cervical spinal dural sac pressure may produce symptoms, the best timely cervical spine MRI and other imaging to clarify the cause of these cases, but also timely medical treatment in serious cases, surgical treatment to relieve the compression.