How hearing works.

It starts when sound enters our ears, causing vibrations to travel through the ear canal to the eardrum. These vibrations travel through three small bones in the middle ear called ossicles. From the ossicles, the vibrations travel to the inner ear, called cochlea, where cells change the vibrations into nerve impulses that are sent to the brain. The brain translates those impulses into the sounds we hear. So when damage occurs to our ears or the auditory nervous system, the signal our brain receives becomes distorted and difficult to understand.

Hearing Loss Causes and Symptoms