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Degrees of Hearing Loss

2012-08-09

Different levels of hearing loss are referred to as degrees, depending on the severity of loss.

Degree of Hearing Loss
Hearing Threshold(in decibels, dB)
Ability to Hear Speech
None
0-25 dB
Little or no perceptible difficulty.
Mild
26-40 dB
Difficulty hearing soft speech and conversations, but can understand in quiet environments.
Moderate
41-55 dB
Difficulty understanding speech, especially in the presence of background noise. Higher volume levels are needed for hearing TV or radio.
Moderate to severe
56-70 dB
Clarity of speech is considerably affected. Speech must be loud and possible difficulty in group conversations.
Severe
71-90 dB
Normal speech is inaudible. Either difficulty with loud speech or comprehension only through shouted or amplified speech.
Profound
91 dB
Even amplified speech is unclear.

 

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