Understanding Hearing Loss

What are early signs of hearing loss?

On average, it takes seven years from the time a person first notices changes in their hearing before they decide to see a hearing specialist. Hearing loss is difficult for the person who experiences it as well as their loved ones, friends, and colleagues. As an invisible condition, the symptoms are not noticeable right away as hearing loss.

Symptoms of hearing loss include:

  • Asking people to repeat what they say

  • Having trouble hearing in groups

  • Turning up the volume on your phone, television, and radio

  • Having difficulty with conversations on the phone or in noisy situations such as restaurants

  • Having difficulty hearing people behind you

    Additionally, because hearing loss interferes with speech recognition, people with early signs of hearing loss may inadvertently find themselves avoiding social interactions. As a result, untreated hearing loss may lead to social isolation, anxiety, and depression.

    What causes hearing loss?

    Hearing loss may be caused by a number of factors, which include exposure to noise, the natural process of aging, or disease and hereditary conditions. There are three types of hearing loss:

    Anatomy of the Ear

    • Conductive
    • Sensorineural
    • Mixed hearing loss.

    Conductive hearing loss is affects the outer and middle ear, ear canal, eardrum, and ear bones (malleus, incus, and stapes). It may be caused by ear infection or fluid buildup in the middle ear from colds; damage to the eardrum; poor Eustachian tube function; impacted earwax, and malformation of the outer, ear canal, and middle ear structures.

    Sensorineural hearing loss affects the inner ear. Damage to inner ear hair cells, which translate sound vibrations into electric impulses that are sent to the brain to be registered as sound. Sensorineural hearing loss is caused by aging, exposure to loud noise, certain classes of ototoxic (poisonous to the ear) medications, Meniere’s disease, tumors, or head trauma.

    Mixed hearing loss is a combination of the above two types of hearing loss, affecting various parts of the ear.