Scalp cold, numbness may be related to head cold, cerebral blood supply deficiency, brain diseases, cervical spondylosis, as follows: 1, head cold: usually pay attention to head warmth, especially when the weather is cold, try to wear a hat outside; 2, cerebral blood supply deficiency: caused by neurasthenia, if this is the case should eat more food to supplement blood, such as red dates, walnuts, but also on the advice of the doctor to drink tranquilizing tonic Brain liquid, can effectively relieve the symptoms of neurasthenia; 3, brain disease: if this symptom has lasted for a period of time, it is recommended to do brain CT or MRI examination at a regular hospital as soon as possible; 4, cervical spondylosis: you can go to the hospital to do a comprehensive examination to confirm the diagnosis of whether it is related to cervical spondylosis.