The sudden pain in the top of the head may be due to the tension in the head and neck muscles caused by the lack of rest recently, usually just pay attention to more rest, do not stay up late, overwork can relieve this symptom. The pain in the top of the head may also be related to cardiovascular system diseases, which may be due to impaired blood circulation in the head, and it is recommended to go to a regular hospital for treatment in a timely manner. Sudden pain at the top of the head may also be due to cervical spine compression to their brain nerve, you can review their habits whether they have a long time low head or driving behavior, may also be due to brain tumors and other diseases compression of the central nerve caused by the pain. The sudden pain in the top of the head may also be the result of accidentally hitting your head before, you can then take appropriate painkillers to relieve it, in short, headache can not be careless, it may be the precursor of some diseases, so you must pay attention to it.