Hearing loss can run in families, though you may not be as susceptible as your parents or siblings. At San Diego Ear, Nose & Throat Specialists on Cassia Road in Carlsbad, audiologist Rachel Faga, Au.D., evaluates your hearing alongside your family history to help you understand how genetics may affect your hearing health. If hearing loss is a known condition in your family, early testing and protective habits can help you preserve your hearing and catch changes sooner.
How Does a Genetic Change Cause Hearing Loss?
A genetic change causes hearing loss when it affects a gene that controls 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.
Experts generally divide genetic hearing loss 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.
Which Inheritance Patterns Raise a Child’s Risk of Hearing Loss?
Several inheritance patterns can raise a child’s risk of hearing loss, and the specific pattern of the gene involved determines how likely it is to be passed on. Depending on the pattern, a child’s chance may range from no risk to 50% or higher, and in many cases, parents with normal hearing can still have a child with genetic hearing loss.
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.
Can Inherited Hearing Loss Surface at Any Stage of Life?
Inherited hearing loss can surface at any stage of life: it may be present at birth, appear during childhood, or develop gradually in adulthood, and some forms progress over years or decades. Congenital forms are usually identified through newborn hearing screening.
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 often develops slowly, which can make it 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.
When Should You Get a Hearing Test in Carlsbad?
You should get a hearing test as soon as you notice changes in your hearing, and if hearing loss runs in your family, a baseline test and regular evaluations may 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. Rachel Faga 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.
What Lifestyle Steps Help if Hearing Loss Runs in Your Family?
The lifestyle steps that help when hearing loss runs in your family are 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 let your 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, Rachel Faga can recommend options such as hearing aids and track changes over time to adjust your care as needed.
Schedule a Hearing Test With Rachel Faga, Au.D., in Carlsbad
If hearing loss runs in your family, a hearing evaluation with Rachel Faga, Au.D., is the natural place to start. The visit sets a baseline and shows whether you need treatment now or regular monitoring.
Call or text 760-334-5466 or contact San Diego Ear, Nose & Throat Specialists to schedule an appointment at our Carlsbad office.