Deafness is the inability to hear properly or not hear at all. The majority of deaf people acquire their deafness after learning spoken language. Common reasons for deafness include:
- ear infection (otitis media) in children
- exposure to loud noise
- some medicines or toxins
- older age
- inherited genetic disorders.
Many deaf people rely on assistive devices such as hearing aids for amplification of sound.
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Last reviewed: July 2016