Hearing loss often runs in families, but you won’t necessarily follow the same path as a parent or grandparent. At Intracoastal Hearing Center on 21st Street in Vero Beach, audiologist Sheila Case, Au.D., CCC-A, considers your family history as part of every hearing evaluation, helping you understand how genetics may shape your hearing health. If hearing loss is a known condition in your family, early testing and protective habits can preserve your hearing and help you address changes sooner.
What Goes On Inside the Ear When Hearing Loss Is Genetic?
When hearing loss is genetic, changes in genes affect how the ear develops or functions. Most genetic hearing loss is sensorineural, meaning it involves the hair cells of the inner ear or the auditory nerve. It may be present at birth or develop later in life.
This type of hearing loss falls into two categories. Nonsyndromic hearing loss accounts for about 70% of genetic cases and occurs without other medical symptoms. Syndromic hearing loss makes up the remaining 30% and occurs alongside other health conditions, such as Usher, Pendred, and Waardenburg syndromes.
Can Parents With Normal Hearing Pass Down Genetic Hearing Loss?
Parents with normal hearing can pass down genetic hearing loss, and whether they do depends on the inheritance pattern of the specific gene involved. Depending on the pattern, a child’s chance may range from no risk to 50% or higher.
The main inheritance patterns include:
- Autosomal dominant: Only one changed gene from one parent is needed, giving each child a 50% chance of inheriting the condition.
- Autosomal recessive: Both parents carry one changed gene without having hearing loss themselves, giving each child a 25% chance of inheriting the condition.
- X-linked: The changed gene is on the X chromosome, so males are more likely to be affected, while females are often carriers.
- Mitochondrial: The condition is passed only by the mother and can affect all of her children.
Autosomal recessive inheritance accounts for about 80% of nonsyndromic genetic hearing loss, which explains why most infants with hearing loss are born to parents with normal hearing. Even within the same family, severity and age of onset can vary from one person to another.
How Does Inherited Hearing Loss Show Up Over a Lifetime?
Inherited hearing loss can show up at birth, during childhood, or later in adulthood. Some forms are congenital and identified through newborn hearing screening, while others are progressive and develop gradually over years or decades.
Congenital hearing loss affects up to three in every 1,000 babies, and inherited genetic factors contribute to about 60% of hearing loss in infants. In young children, signs may include not reacting to loud sounds, not turning toward voices, or delays in speech and language development.
Later-onset genetic hearing loss tends to develop slowly, so it’s easy to overlook. Adults may notice:
- Difficulty following conversations in noisy places
- Asking others to repeat themselves
- Turning up the television or phone volume
- Ringing or buzzing in the ears
Because gradual changes can go unnoticed, family members are often the first to recognize them.
How Soon Should You Have Your Hearing Checked in Vero Beach?
You should have your hearing checked as soon as you notice changes, and if hearing loss runs in your family, baseline testing and regular evaluations can help even before symptoms appear.
Almost all hospitals screen newborns for hearing loss within the first few days of life. Children who pass newborn screening but have a family history of hearing loss may still benefit from monitoring, since some genetic forms develop later.
For adults, a baseline hearing evaluation provides a reference point for tracking changes over time. Sheila Case can perform a comprehensive hearing test, discuss your family history, and recommend how often you should return for follow-up testing. When a genetic cause is suspected, she may recommend a referral for genetic counseling or testing. Currently, no genetic test can predict whether a person will develop age-related hearing loss, which makes regular hearing evaluations especially important.
How Can You Look After Your Hearing if Relatives Have Hearing Loss?
If relatives have hearing loss, you can look after your hearing by limiting noise exposure, using hearing protection, reviewing medications with your healthcare providers, managing your overall health, and scheduling regular hearing evaluations.
Because some genes can make the inner ear more vulnerable to damage, avoiding additional strain is especially important. Wearing earplugs or earmuffs around loud equipment, concerts, or firearms and keeping headphone volume at moderate levels can reduce noise exposure. Some medications can affect hearing, so patients should let their healthcare providers know about a family history of hearing loss before starting new prescriptions.
Overall health also plays a role. Conditions such as high blood pressure, heart disease, and diabetes may increase the risk of hearing loss, so managing these conditions supports long-term hearing health.
When hearing loss does develop, Sheila Case can recommend options such as hearing aids and track changes over time to adjust your care as needed.
Schedule a Family Hearing Evaluation With Sheila Case, Au.D.
If hearing loss runs in your family, a hearing evaluation with Sheila Case, Au.D., at Intracoastal Hearing Center is the place to begin. Your first appointment includes a hearing test that sets a baseline and shows whether you need treatment now or continued monitoring.
Call 772-758-8391 or contact Intracoastal Hearing Center to schedule an appointment at our 21st Street office in Vero Beach.