Numbness of the head may be caused by non-disease factors such as cold, overuse of the brain, or disease factors such as insufficient blood supply to the brain and cervical spondylosis. 1. Non-disease factors: head wind, cold can cause head numbness symptoms, excessive use of the brain, sleep deprivation, excessive thinking can also cause numbness in the head. 2. Cerebrovascular diseases: for example, cerebrovascular diseases such as cerebral blood supply insufficiency, cerebral thrombosis, etc., may lead to localized degeneration or necrosis of brain tissues, causing numbness of the hair. 3. Cervical spondylosis: If the patient has cervical spondylosis, it may lead to narrowing of the spinal canal, which may compress the nerves and cause numbness of the hair. In addition, hypertension, arteriosclerosis and other diseases may cause head numbness. Patients with symptoms of head numbness should be ruled out whether it is caused by disease, such as disease factors recommended to go to the hospital in a timely manner, clear cause of the disease under the guidance of a professional doctor, take targeted measures.