More than three million Canadians have some degree of hearing loss that can be attributed to many different causes and disorders of the middle or inner ear. In one way or another, and at one time or another, it is likely that each and every Canadian will be affected by hearing loss.
Hearing loss occurs when hair cells lining the cochlea are damaged by sudden blasts of noise or continued unprotected expose to loud noise. For example, close proximity to an explosion, industrial workplace noise, or having the volume turned up too high for too long may cause damage to the hair cells in the cochlea, which is cumulative, permanent and irreversible. Other causes include disease, repeated ear infections, wax build-up, or abnormalities of the tiny bones of the ear.