Cervical spondylosis does not cause facial numbness. In most cases, cervical spondylosis is a lower segment cervical spondylosis, cervical 4-7, which can cause numbness and weakness of both upper limbs. In the case of cervical spondylosis of higher segments, such as cervical 1-4, numbness and discomfort in the anterior part of the neck, the back of the neck, and the occipital area may occur, as well as numbness and discomfort in the shoulders, but it does not lead to numbness and discomfort in the face. If the symptoms of facial numbness appear, it is necessary to check whether it is caused by cerebral nerve disease, which can be further diagnosed by nuclear magnetic examination, or whether facial numbness is caused by inflammation of facial nerves or tumors of nerves.