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Deafness and hearing loss
Starkey Hearing Foundation
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Deafness and hearing loss


    Hearing loss and deafness

    66顺彩票appA person is said to have hearing loss if they are not able to hear as well as someone with normal hearing - hearing thresholds of 20 dB or better in both ears. It can be mild, moderate, moderately severe, severe, or profound, and can affect one or both ears. Hearing loss has multiple potential causes: genetic factors, complications at birth, infectious disease, chronic ear infections, usage of certain drugs, exposure to excessive noise, and aging.

    Hard of hearing and deaf

    The term ‘deaf’ is used to describe the condition of people with severe or profound hearing loss in both ears as they can hear only very loud sounds or not hear anything at all.

    The term ‘hard of hearing’ is used to describe the condition of people with mild to severe hearing impairment as they cannot hear as well as those with normal hearing.

    Ear and hearing care

    Ear and hearing care includes comprehensive, evidence-based interventions to prevent, identify and treat ear diseases and hearing loss; and to rehabilitate and support people with hearing loss through the health system and in collaboration with other systems.

    Hearing rehabilitation

    The term encompasses a diverse set of interventions that can benefit people with untreatable hearing loss. These include: hearing aids, cochlear implants, other assistive devices, sign language, auditory training, speech and language therapy and captioning.

    466 million


    66顺彩票appare estimated to be living with hearing loss (6.1% of the world’s population)

    More than

    1 billion

    66顺彩票appyoung people (12-35 years) are at risk for hearing loss due to recreational exposure to loud sound.

    750 billion


    is the overall annual cost of unaddressed hearing loss globally.



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    World Hearing Day is held on 3 March each year to raise awareness on how to prevent deafness and hearing loss and promote ear and hearing care across the world.

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