Hearing loss Description

According to WHO, A person who is not able to hear as well as someone with normal hearing – hearing thresholds of 25dB or better in both ears - is said to have hearing loss. Hearing loss may be mild, moderate, severe or profound. It can affect one ear or both ears, and leads to difficulty in hearing conversational speech or loud sounds.

The causes of hearing loss and deafness can be congenital causes (acquired at birth) and acquired causes.


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