Hearing Loss Causes and Treatment

Updated: Jul 17, 2022

Hearing loss can affect people of any age, from infancy into adulthood. This condition becomes more common as people age. While there are many causes, no matter what your age, you may be able to prevent some types of hearing loss. Other types can be corrected with devices such as hearing aids.

Key Takeaways

  • Changes in the ear due to aging is a common cause of hearing loss.
  • Uncorrected hearing loss can reduce quality of life and increase social isolation. 
  • You don’t have to live with hearing loss. Hearing aids don’t cure hearing loss, but they can reduce its impact. 
Hearing Loss Causes and Treatment

If you’re finding it harder to follow conversations or hear the TV, you’re not alone. Hearing loss that occurs gradually in older adults is a common condition called presbycusis. According to the World Health Organization, an individual who has hearing loss cannot hear as well as someone with normal hearing, which means a hearing threshold of 20 decibels or more in both ears. An example of a 20-decibel sound is someone whispering from 5 feet away.

Anyone of any age can have hearing loss in one or both ears that ranges from mild to profound. In older adults, age-related hearing loss is common and can have troubling effects. Struggling to hear can lead to depression, social isolation, and poor quality of life. The Lancet International Commission on Dementia, Prevention, Intervention, and Care has estimated that correcting and eliminating midlife hearing loss can reduce the risk of dementia by 9 percent. 

If you’re finding yourself asking people to repeat what they’ve said far too often, read on to learn what you can do to prevent and correct hearing loss. 

What Are the Symptoms of Hearing Loss?

Older man or pensioner with a hearing problem make a hearing test and may need a hearing aid

Age-related hearing loss comes on gradually and may be imperceptible at first. If you have hearing loss, you may find yourself turning up the volume on your phone, computer, or television often. You may also realize you’re asking people to repeat themselves or are leaving social situations because you can’t follow conversations easily. 

Over time, you may find yourself experiencing the following symptoms:

  • Having trouble hearing higher-pitched sounds, such as birds chirping or children speaking
  • Sounds seeming muffled
  • Having trouble making out words
  • Experiencing difficulty hearing nearby speech when you’re in a noisy environment, such as a crowded room
  • Having trouble hearing consonants, such as S, T, or Z

What Are the Causes of Hearing Loss? 

There are many potential causes of hearing loss. Some causes, such as wax buildup, can cause temporary hearing loss. Most hearing loss is permanent, but it can be corrected with devices such as hearing aids.

Common hearing loss causes include:

  • Presbycusis (changes in the inner ear caused by aging)
  • Repeated or consistent exposure to loud noise
  • Family history of hearing loss (genetics)
  • Medical conditions such as diabetes
  • Meniere’s disease (disruption of fluid balance in the inner ear)
  • Autoimmune inner ear disease 
  • Medications (over 200 medications are ototoxic, which means they can cause hearing loss). These medications include chemotherapy drugs, certain antibiotics, and Viagra.
  • Viral infection
  • Stroke
  • Earwax buildup (causes temporary hearing loss)
  • Abnormal tumor of the hearing nerve (acoustic neuroma) 
  • Abnormal bone growth in the outer or middle ear
  • Ruptured eardrum (this can be caused by pressure changes, intense blasts of noise, infection or a foreign object in the ear)

Difference Between Loud Noises of Common Sounds

Decades ago, the Environmental Protection Agency (EPA) determined that 70 decibels is the safe noise level threshold. Consistent or prolonged exposure to sounds over 70 decibels may cause hearing loss over time. The louder the noise is, the faster permanent hearing loss may occur. 

Here are some examples of decibel sound levels:

TYPES OF SOUND
Whisper
DECIBELS 30
Normal speech
DECIBELS 60
Crowded room
DECIBELS 85
Motorcycle
DECIBELS 95
MRI
DECIBELS 65-130
Rock concert
DECIBELS 112-120
Ambulance
DECIBELS 120
Jackhammer
DECIBELS 130
Firecracker
DECIBELS 145-160

Maximum Sound Exposure Duration

The amount of time you are exposed to loud noise is a significant indicator of your risk for hearing loss. Based on recommendations by the Occupational Safety and Hazard Commission, by law, employers must create and maintain a hearing conservation program if workers are exposed to noise that averages above 85 decibels over the course of an eight-hour day. 

Many occupations require intermittent or prolonged noise exposure. Wearing protective gear, such as noise-reduction earmuffs, earplugs, and semi-insert earplugs are essential in these situations for protecting your ears and avoiding hearing loss.

Complications of Hearing Loss

Hearing loss that is untreated can have physical and emotional effects. Loss of sound means less brain stimulation. This can cause the brain to atrophy more quickly, leading to cognitive decline. This may be why untreated hearing loss is associated with an increased risk for dementia. Studies indicate that mild hearing loss can double dementia risk. Moderate loss triples risk, and severe loss increases the risk by five times. . 

The social and emotional impact of hearing loss can also be profound. An inability to follow conversations can lead to social withdrawal and isolation from family and friends. Complaints from neighbors about your TV being too loud may cause you to limit the amount of external stimulation you have even further, exacerbating feelings of isolation. 

Tinnitus, a condition that often accompanies hearing loss, may cause anxiety and depression. It may be harder to enjoy the peace and quiet of nature, robbing you of simple pleasures. 

Different Types of Hearing Loss

The ear contains three major sections, which are all required for optimal hearing. These sections are the outer ear, middle ear, and inner ear. Hearing loss can be caused by conditions affecting one or all of these locations. 

There are three types of hearing loss:

Sensorineural 

Sensorineural hearing loss is caused by inner ear damage. It is the most common type of permanent hearing loss. 

Sensorineural hearing loss makes it hard to hear soft and loud sounds. Causes include:

  • Aging
  • Illness
  • Loud sound exposure
  • Accidents, such as a blow to the head
  • Genetics and heredity
  • Ototoxic medications, including certain cancer drugs 

Hearing aids can help with this type of hearing loss. 

Conductive

This type of hearing loss occurs when sound can’t get through the outer and middle ear. It may be hard to hear soft sounds, and loud sounds may be muffled. 

You can be born with conditions that cause this type of hearing loss, such as irregularities in the way your ear is constructed or formed. 

You can also experience hearing loss due to conditions such as:

  • Ear infections
  • Fluid in the middle ear (poor Eustachian tube drainage)
  • Benign tumors
  • Ear wax buildup 

This type of hearing loss can often be treated. The passage of time, medication, and surgery are all potential treatments. 

Mixed 

Mixed hearing loss is caused by a combination of sensorineural and conductive hearing loss. Hearing aids may help with this type of hearing loss. 

Degrees of Hearing Loss

The amount of hearing loss you have is defined by how loud sounds must be in order for you to hear them. You can have varying degrees of hearing loss in each ear. 

According to the American Speech-Language-Hearing Association, the following decibel levels indicate degree of hearing loss: 

DEGREES OF HEARING LOSS
Normal hearing
HEARING LOSS RANGE–10-15 decibels
Slight hearing loss
HEARING LOSS RANGE16-25 decibels
Mild hearing loss
HEARING LOSS RANGE26-40 decibels
Moderate hearing loss
HEARING LOSS RANGE41-55 decibels
Moderately severe hearing loss
HEARING LOSS RANGE56-70 decibels
Severe hearing loss
HEARING LOSS RANGE71-90 decibels
Profound hearing loss
HEARING LOSS RANGE91+ decibels

Hearing Loss Prevention

Age-related hearing loss cannot be prevented, but hearing loss due to noise exposure and other causes can. Here are our recommendations for avoiding hearing loss: 

  • If you’re in a noisy environment, try to create as much distance from yourself and the source of the noise as possible. 
  • Limiting the amount of time you’re exposed to noise is also very important.
  • Keep the volume down on devices that require headphones.
  • Protect your ears in noisy environments by wearing foam ear plugs or other devices.
  • Speak with your doctor about your over-the-counter and prescription medications. When possible, ask to use drugs that won’t affect your hearing.
  • Keep foreign objects out of your ear, including ear cleaners. 
  • Don’t ignore ear pain or feelings of fullness in the ear. If you’re uncomfortable, see your doctor for diagnosis and treatment.

Helpful Devices for People With Hearing Loss

Bluetooth Hearing-Aid

If you’re struggling with hearing loss, you may also be struggling with the solution for it. Obstacles to correcting hearing loss include the cost of hearing aids and concerns about how you’ll look wearing them. 

If you’re looking for the best hearing aids available, keep in mind that there are many types. Some are worn behind the ear and may be visible. These are often colored to blend with common hair colors. Other hearing aids are worn in the ear canal and may be practically invisible. The best type for you will be determined by the kind of hearing loss you have and other factors, such as the size and shape of your ear canal. 

If cost is a factor, you have options. Some of the best hearing aids on the market are less expensive than you might think. In addition, a new Food & Drug Administration ruling has been passed that will increase access to less expensive, over-the-counter hearing aids. These differ from personal sound amplification products (PSAPs), which amplify all sounds, not just those you have trouble hearing. PSAPs are not meant to correct hearing loss. In fact, they may actually increase hearing loss rather than correcting it. 

Frequently Asked Questions

Aging and noise exposure are the main causes of hearing loss. Genetics, ototoxic medications, and conditions such as diabetes are also common causes.

WRITTEN BY

Corey Whelan is a writer, health care professional, and Brooklyn, New York native. She is a reproductive health advocate who has helped countless patients through the trials and triumphs of infertility and adoption over the past 25 years. Corey's passion is sharing her knowledge of health and wellness through her writing, and no topic is off limits. She's mom to two grown children and two rescue dogs who captured her heart.