Cervical spondylosis is the pain produced by the compression of the spinal cord, nerves and blood vessels after aging degeneration and hypertrophy of the cervical intervertebral discs, vertebrae and ligaments. The main manifestations of cervical spondylosis are neck and shoulder pain, numbness and weakness of the upper or lower limbs, difficulty walking, and dizziness. How to self-test for cervical spondylosis? The symptoms of cervical spondylosis are as follows. 1. pain in the back of the neck, which can be relieved by pulling the head and neck upward with the hand, but aggravated by putting pressure downward (mostly cervical cervical spondylosis). 2. neck pain accompanied by radioactive pain or numbness in the upper limbs (including the hands) (mostly neurogenic cervical spondylosis). 3. when closing the eyes, rotating the head and neck to the Rotation of the head and neck to the left and right when the eyes are closed, causing migraine or vertigo (mostly vertebral artery cervical spondylosis). 4. Neck pain accompanied by muscle weakness and muscle pain in the upper or lower extremities (mostly spinal cord cervical spondylosis or combined cervical spinal stenosis). 5. Sudden numbness or an “electric shock”-like sensation in the whole body when the head is lowered (mostly spinal cord cervical spondylosis). Most of them are spinal cord type cervical spondylosis, especially those with severe cervical spinal stenosis).