Tinnitus however, tolerate it well, and it is a significant problem in only 1–2% of people. The word tinnitus is from the Latin "tinnīre" which means "to ring". Tinnitus can be perceived in one or both ears or in the head. It is the description of a noise inside a person’s head in the absence of auditory stimulation. The noise can be described in many different ways. It is usually described as a ringing noise but, in some patients, it takes the form of a high-pitched whining, electric buzzing, hissing, humming, tinging or whistling sound or as ticking, clicking, roaring, "crickets"
Tinnitus retraining therapy significantly bothered by it. However, some of the problems caused by tinnitus include annoyance, anxiety, panic, and loss of sleep and/or concentration. The distress of tinnitus is strongly associated with various psychological factors; loudness, duration and other characteristics of the tinnitus are secondary. TRT may offer real although moderate improvement in tinnitus suffering for adults with moderate-to-severe tinnitus, in the absence of hyperacusis, significant hearing loss and/or depression. Not everyone is a good candidate for TRT. Factors associated with suitability for TRT and predisposing for favorable outcome are: lower loudness of tinnitus, higher pitch of tinnitus, shorter duration of tinnitus