Cervical spine traction is to use external force, a special traction tool, to make the cervical spine to pull, to reduce the pressure of the cervical disc, expand to increase the cervical spine gap, maintain the stability of the cervical spine and the structure of forward flexion, and at the same time can make the intervertebral foramen of the cervical spine to be enlarged. The time of cervical traction is as follows: 1, cervical traction for cervical disc herniation or cervical strain, the general traction time is 30 minutes to 2 hours; 2, cervical traction for cervical dislocation caused by trauma, the degree of cervical traction reset needs to be clarified while traction; 3, because of fracture dislocation in cervical trauma, that is, high occipital neck dislocation, patients who need continuous traction, need traction for several days, or even 2-3 weeks 4, pathological damage, such as the presence of cervical spine tumor, tuberculosis, cervical traction is to prepare for surgery, the doctor needs to frequently observe whether the requirements are met, generally traction for about 1-2 weeks. Therefore, cervical traction has different traction times depending on the type of disease. Generally, doctors instruct patients to traction themselves often for cervical disc degeneration, 1-2 hours is sufficient.