Each episode of<unk>  results in permanent damage within the inner ear, even though the majority of patients, the symptoms will disappear and an audiogram will show normal hearing within a few hours to a few days. In some cases, the changes seen in the audiogram will only partially improve or remain permanent. One of the signs and symptoms of<unk>  is tinnitus and this may persist for a long time. In some cases, tinnitus may become a permanent condition. There is no specific study done on Life Expectancy or statistical information for the prognosis of<unk> . Overall, depending on how powerful the noise was and how and what degree of the severity, the prognosis is quite difficult to predict.
Acoustic trauma
Facial trauma
Barotrauma
Penetrating trauma
Traumatic asphyxia
Closed-head injury
Trauma
Blast injury