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Etiology and diagnosis of tinnitus - UpToDate

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Etiology and diagnosis of tinnitus INTRODUCTION Tinnitus is a perception of sound in proximity to the head in the absence of an external source. It can be perceived as being within one or both ears, within or around the head, or as an outside distinct noise. The sound is often a buzzing, ringing, or hissing, although it can also sound like other noises. Tinnitus can be continuous or intermittent. Although both may have a significant impact on the patient, the latter is not usually related to a serious underlying medical problem. The sound may be pulsatile or non-pulsatile. Pulsatile…

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