Patients often head numbness, the first consideration is the head microcirculation disorders, usually after a long period of low head work, scalp numbness after exertion, considering the local cerebral blood supply is insufficient. There are also patients with cervical spondylosis, because the cervical spine will lead to vertebral artery compression, cerebral blood supply is insufficient, a long time after a posture, the neck muscles will be tense pull, resulting in insufficient blood supply to the scalp, the patient will be manifested in the scalp numbness of the symptoms. There is also often numbness of the head should also be considered mental psychological factors, such as patients suddenly by the cold stimulus, may be manifested in the head of numbness, as well as numbness of the arms and hands of the symptoms. There are also some things, such as the existence of fear or panic, psychological aversion or rejection, there will also be frequent numbness of the head symptoms.