The word 'tinnitus' comes from the Latin word for 'ringing' and is the perception of sound in the absence of any corresponding external sound.

It is not a disease or illness; it is a symptom generated within the auditory system.

The noise may be in one or both ears, or in the head, or it may be difficult to pinpoint its exact location. The noise may be low, medium or high pitched. There may be a single noise or two or more components. The noise may be continuous or it may come and go.

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