Deafness acquired refers to a partial or total loss of hearing that develops after the birthunlike congenital deafness that is present at birth. Deafness acquired it can be caused by various causes, including viral or bacterial infection, espostizione to excessive noise, aging, autoimmune diseases, trauma to the head or the ear, exposure to toxic substances, or ototoxic medications, and other factors. Depending on the cause and degree of hearing losspeople with deafness acquired can use hearing aids, cochlear implants, sound reinforcement systems personnel, or other assistance devices for the hearing to improve their hearing ability. May also require the assistance of specialists, audiologists and medical rehabilitation to manage their condition and to improve their quality of life.