There are several ways to determine whether the cervical spine is misaligned: First, externally, see whether the cervical spine is fixed in a specific position and remains in a passive position. Second, the cervical spine movement is restricted, unable to perform flexion, posterior extension, lateral flexion and rotation activities. Third, the cervical spinous process is not in the same line by finger touch, and deviation occurs. The deviated cervical spine is usually a misaligned cervical spine, and the cervical spinous process or transverse process is swollen and locally painful, accompanied by obliquity. Fourth, the cervical spine can be clearly misaligned by frontal and lateral radiographs, which usually show that the small joints of the cervical spine lose their normal alignment and the cervical spinous process becomes oblique. Fifth, the pain in the neck is more intense when the cervical spine is misaligned. The misalignment of cervical spine should be promptly repaired by manipulation or traction to restore the normal alignment and alignment of cervical spine, so as to avoid serious consequences of cervical spinal cord nerve injury.