Decreased t2 signal of cervical intervertebral disc indicates that the moisture content of the intervertebral disc decreases on magnetic resonance, which is mainly caused by degenerative disc disease, compression of the intervertebral disc and other factors. With age, degenerative disc lesions occur, the water content decreases, and the disc signal decreases, which can be manifested as a color change such as gray or black on the MRI. If there is cervical spondylosis or cervical spine tumor, due to the pressure on the blood vessels around the lesion, resulting in a decrease in the blood flow rate in the blood vessels, there will also be a decrease in water content and signal reduction. If the cervical intervertebral disc t2 signal reduction, should improve the examination in time, clear the cause of the disease, under the guidance of the doctor targeted treatment, so as not to delay the condition.