Posts Tagged ‘deafness’

Deafness and hearing loss.

Deafness and hearing loss.

Deafness and hearing loss. Hearing loss and its final stage — deafness — can develop gradually, over a number of years or months, and also come on suddenly, in a few days or hours. One or both ears can be affected. Hearing loss can be caused by infectious diseases, otitis media, congenital defects of nerves […]