Hearing Loss

The Link Between Diabetes and Hearing Loss: What You Need to Know

Did you know that diabetes can affect your hearing as well as your eyesight, kidneys and heart? Most people are aware that diabetes can affect different parts of the body. However, many are surprised to learn that it can also affect their hearing. Research suggests that people with diabetes are more likely to develop hearing loss than those without the condition. Unfortunately, hearing problems often develop gradually and may go unnoticed for several years. Understanding this connection can help you take simple steps to protect your hearing.

How Does Diabetes Affect Your Hearing?

Our ears contain thousands of tiny sensory cells, known as hair cells, inside the cochlea (the hearing organ in the inner ear). These cells help convert sound vibrations into electrical signals that travel to the brain through the hearing nerve.

For these cells to work properly, they need a healthy blood supply and functioning nerves.

Over time, high blood sugar levels associated with diabetes may damage the small blood vessels and nerves in the inner ear. This can affect how sound signals are transmitted to the brain, potentially leading to hearing loss. The changes are often gradual, meaning you may not notice any difficulty until your hearing has already been affected.

Are People with Diabetes More Likely to Develop Hearing Loss?

Yes. Research suggests that hearing loss is approximately twice as common in adults with diabetes compared with those without diabetes.

Even people with prediabetes, where blood sugar levels are higher than normal but not yet in the diabetic range, may have an increased risk of hearing difficulties. However, not everyone with diabetes will develop hearing loss. Age, noise exposure, genetics and other health conditions can also affect hearing.

What Are the Early Signs of Hearing Loss?

Hearing loss associated with diabetes often affects both ears and may develop slowly.

Some common warning signs include:

Difficulty following conversations, particularly in restaurants or noisy places.
Frequently asking people to repeat themselves.
Feeling that others are mumbling or not speaking clearly.
Turning up the television volume more than usual.
Difficulty hearing high-pitched sounds, such as birds singing or certain speech sounds.
Experiencing ringing or buzzing in the ears (tinnitus).

Because hearing loss can develop gradually, family members sometimes notice the problem before the person experiencing it.

Can Diabetes Cause Tinnitus?

Tinnitus is the perception of sound, such as ringing, buzzing or hissing, when no external sound is present. Some studies have found an association between diabetes and tinnitus. However, diabetes is not necessarily the direct cause.

Tinnitus can also be associated with hearing loss, noise exposure, certain medications and other medical conditions. If you experience persistent tinnitus, a tinnitus assessment can help identify whether hearing loss or another ear-related problem is present.

Can Hearing Loss Caused by Diabetes Be Reversed?

Unfortunately, damage to the delicate sensory cells and nerves in the inner ear is often permanent. However, early identification and appropriate management can make a significant difference. Modern hearing aids can help people hear conversations more clearly, communicate confidently and remain socially active. Good diabetes management is also important for overall health and may help reduce the risk of further complications.

How Can You Protect Your Hearing if You Have Diabetes?

There are several simple steps you can take:

Manage your blood sugar levels: Follow your healthcare professional’s advice on diabetes management.
Have your hearing checked: Consider a baseline hearing assessment, particularly if you have diabetes or have noticed changes in your hearing.
Protect your ears from loud noise: Avoid prolonged exposure to excessive noise and use appropriate hearing protection when necessary.
Look after your cardiovascular health: Managing blood pressure and cholesterol is important for overall vascular health.
Do not ignore early symptoms: If you notice hearing difficulties or tinnitus, seek professional advice.

Why Is a Clinical Hearing Assessment Important?

A clinical hearing assessment does much more than simply check whether you can hear sounds.

It helps determine:

Whether hearing loss is present.
The type and degree of hearing loss.
Whether the problem is related to the outer ear, middle ear or inner ear.
How well you understand speech.
Whether further medical investigation or hearing rehabilitation may be required.

Identifying hearing loss early allows appropriate management before communication difficulties begin to significantly affect everyday life.

Should Everyone with Diabetes Have Their Hearing Tested?

Although hearing tests are not universally included in routine diabetes care, people with diabetes should be aware of the potential risk. A baseline hearing assessment can be useful, especially for adults with longstanding diabetes or other risk factors. Further testing can then be arranged depending on the results, symptoms and clinical recommendations. If you experience sudden hearing loss, particularly over a few hours or days, seek urgent medical assessment rather than waiting for a routine hearing appointment.

Take Care of Your Hearing Just as You Take Care of Your Eyes

People living with diabetes are often advised to have regular eye examinations and monitor their kidney and cardiovascular health.

Your hearing deserves attention too.

Hearing plays an important role in communication, relationships, confidence and overall quality of life. Recognising hearing difficulties early can help you stay connected with the people and activities that matter most.

Book a Clinical Hearing Assessment

At The Audiology Clinic, our Doctor of Audiology provides comprehensive clinical hearing assessments to identify hearing difficulties and advise on appropriate management.

Whether you have diabetes, prediabetes, tinnitus or simply feel that your hearing is not as clear as it used to be, a clinical hearing assessment can provide valuable information about your hearing health.