If your head always hurts, you should do cranial CT, cranial magnetic resonance, angiography of CT or magnetic resonance, and lumbar puncture, as follows: 1, cranial CT or cranial magnetic resonance: this is the first step of the examination, which is mainly to exclude the more common organic diseases in the brain, such as cerebral hemorrhage, brain tumor, encephalitis, etc., and the CT or magnetic resonance can directly see the lesions, of which the magnetic resonance is more delicate, showing a CT or magnetic resonance can directly see the lesions, of which magnetic resonance is more detailed and shows a higher positive rate of lesions; 2. CT or magnetic resonance vascular imaging: including venous imaging and arterial imaging, mainly to exclude the presence of thrombosis in the venous system, as well as arterial and venous malformations and aneurysms, etc.; 3. Lumbar puncture: when the above non-invasive examinations cannot find the cause of the disease, and if the tumor metastasizes to the brain and causes meningeal carcinoma, the brain parenchyma will not have any abnormal signals on the imaging, and there is often There is no thickening and enhancement signal, only lumbar puncture to take cytology to do examination and laboratory test to find tumor cells, then it can be diagnosed conclusively.4. Routine laboratory examination, in order to exclude pain caused by some infectious diseases.