Acute cervical disc herniation refers to acute onset, mostly after malposition, with corresponding complaints and clinical manifestations of spinal cord or spinal nerve root compression; imaging examinations confirm the presence of ruptured or herniated discs and show signs of compression of the cervical medulla or nerve roots. With timely diagnosis and early active treatment, more than 90% of cases can be cured. Clinical manifestations] After central cervical disc herniation, incomplete or complete paralysis of the limbs and abnormal urination and defecation may occur due to spinal cord compression. At the same time, the tendon reflexes of the extremities show hyperactivity, and the pathological reflex signs may show positivity, and hypesthesia or loss of sensation may occur according to the protrusion plane. After lateral herniation of the cervical disc, radicular pain is predominant. The main symptoms are neck pain and restricted movement, as if the pillow is falling, and the pain may radiate to the shoulder or occipital area; there is pain and numbness in one upper limb, but it rarely occurs on both sides at the same time; muscle strength changes are not obvious. The pain and numbness in one upper limb are not obvious. On physical examination, the head and neck are often in a rigid position with limited movement. There may be pressure pain in the lower cervical spine and scapula. If the head is turned backward and sideways to the affected side, pressure on the top of the head can cause neck and shoulder pain, which radiates to the hands (i.e. intervertebral foramen crush test). Pulling on the affected upper limb can cause pain (radicular pull test). Imaging examination] 1. Cervical spine X-ray examination Each case should be routinely taken with cervical spine orthogonal, lateral and power x-ray plain films. The physiological anterior convexity of the cervical spine can be reduced or disappeared during the film reading. The affected vertebral space is narrowed and may have degenerative changes. In younger cases or those with acute traumatic herniation, there may be no abnormal findings in the intervertebral space. However, on the cervical dynamic lateral radiographs, instability of the involved segments and more obvious trapezoidal changes (pseudo-subluxation) can be seen. 2. MRI examination of the cervical spine is of great value for the diagnosis of cervical disc herniation. On MRI, the disc can be directly observed to protrude backward into the spinal canal, and the signal intensity of the herniated component of the disc and the residual nucleus pulposus is basically the same. In the case of central herniation, the herniated disc can be seen to significantly compress the cervical medulla, causing local flattening or depression and abnormal signal of the cervical medulla at the site of compression. In the case of lateral herniation, the herniated disc can be seen to deform the cervical medulla laterally by compression, with altered signal intensity and loss or posterior displacement of the nerve root.