The incidence of tinnitus accounts for about 15% or even more of adults over 40 years of age, and there are quite a few of them who are progressively aggravated and remain untreated for a long time. Many patients have their quality of life and work seriously affected by the presence of tinnitus, which we understand and attach great importance to. In order to basically figure out what the primary cause of tinnitus is, a comprehensive examination of it is roughly as follows: 1) Audiological and routine examination of the ear; 2) CT scan of the temporal bone; 3) Brain MR (magnetic resonance scan); 4) Brain MRA/CTA (cerebral arterial vascular imaging); 5) Brain MRV/CTV (cerebral venous vascular imaging); 6) Auditory evoked potential measurement; 7) DSA imaging of the whole brain and neck. This allows for a more comprehensive evaluation and exclusion of most causes of tinnitus similar to inflammatory lesions of the middle ear and brain tumors, cerebral aneurysms, vascular travel abnormalities, vascular stenosis, encephalitis, atherosclerosis, cerebral infarction and other degenerative diseases. When the cause of tinnitus can be determined, accurate and reliable treatment recommendations will be available for patients and physicians to consider and choose from. Since the examination is a large project, then it is necessary for experienced doctors to try to analyze the general location of the lesion from the clinical manifestations and reduce the number of tests without missing the condition; however, there are some that are necessary and we hope that our patients and friends will understand and cooperate. In conclusion, tinnitus is a complex clinical condition and its treatment is a systematic project; if treatment is needed, it is necessary to find out what causes tinnitus and whether it can be cured or not may depend on the degree of damage to the auditory nervous system caused by the primary lesion; otherwise, one will be trapped in unexplained pain for a long time. Hopefully, doctors and patients will work closely together, and hopefully the day will not be too far off when this common and persistent disease can be overcome.