Cervical spondylosis does not cause tongue numbness, because cervical spondylosis is the degeneration of the cervical spine and its secondary changes, which may compress the nerves in the neck, and may cause sensory and motor abnormalities in the neck and upper limbs, and may cause numbness of the neck and shoulders, numbness of the hands and the feet, etc. Some of the cervical spondylosis may lead to nausea, vomiting and dizziness. Cervical spondylosis has nothing to do with the tongue. The nerves that innervate the tongue belong to the cerebral nerves (hypoglossal innervation), and the numbness of the tongue in general is caused by intracranial disorders such as cerebral thrombosis, cerebral hemorrhage, and intracranial tumors. Therefore, cervical spondylosis is impossible to cause tongue numbness. If there is numbness of the tongue, attention must be paid to avoid aggravation of the condition. If cervical spondylosis and numbness of the tongue occur, it is recommended to go to the hospital in time for early and regular treatment.