Five Degrees of hearing Loss

Degrees of hearing loss refer to the severity of the loss and are generally described as mild, moderate, severe, or profound. Hearing loss that borders between two categories is typically labeled as a combination of the two categories (for example, thresholds at 60 dB HL might be called moderate-to-severe). An audiologist can determine the severity of your hearing loss by conducting one of the five types of hearing tests.

  Hair cells (as shown in an animal model) are the sensory cells that enable hearing. When they are damaged, a hearing loss occurs.

Hair cells (as shown in an animal model) are the sensory cells that enable hearing. When they are damaged, a hearing loss occurs.

MILD HEARING LOSS
People with a mild hearing loss may have difficulty hearing soft spoken people and young children. They are often able to hear the loud or more intense vowel sounds, but may miss some of the softer consonant sounds. They may have to ask people to speak up or repeat themselves on occasion. For someone with typical hearing, this is comparable to placing fingers in one's ears.

MODERATE HEARING LOSS
In addition to missing consonant sounds, vowel sounds then become more difficult to hear. People with a moderate hearing loss often comment that without hearing aids they hear, but can’t always understand.

MODERATELY SEVERE HEARING LOSS
Without hearing aids, speech is inaudible. Even with hearing aids, speech may be difficult to understand. Increasing the amplification doesn’t always make it clearer.

SEVERE
Without hearing aids or cochlear implants, speech is inaudible.

PROFOUND
Without hearing aids, may be unable to hear very loud sounds like airplane engines, traffic, or fire alarms.
 

Visualizing Hearing Loss AS A SCALE

Hearing loss is measured on a scale of decibels (dB) as shown on the y axis. The x axis indicates ability to hear various frequencies at certain levels of hearing loss, like the sound of a bird chirping at ~6000 Hz. A person fitted with hearing aids for the first time will often immediately notice their ability to hear birds chirping.

  An audiogram showing a profound bilateral (in both ears) hearing loss. Source:    Cochlear

An audiogram showing a profound bilateral (in both ears) hearing loss. Source: Cochlear


FURTHER READING

If You Embrace Your Hearing Loss, You Deal With It Better

For children today who are profoundly deaf, the world is full of possibilities. At specialized schools, in addition to developing listening and spoken language skills, students learn how to understand their hearing loss, maximize their technology, and advocate for themselves.

How Nutrition Affects Our Hearing

There is no specific food that will definitely cause or prevent hearing loss. Likewise, lost hearing cannot be restored through a diet change. However, new research suggests that certain nutrition patterns may actually decrease—or increase—your risk of developing hearing loss.

Hearing Better Through the Ages

Supporting hearing health begins at birth, when we test newborns for hearing loss, and continues into our elder years, when assistive technology can vastly improve overall health and quality of life.