Hearing Loss in Children: Signs, Causes & What Parents Should Do

If you’re reading this, chances are something has you concerned—maybe your child isn’t responding to sounds the way you’d expect, their speech seems behind other kids their age, or a teacher mentioned they might not be hearing well in class. Whatever brought you here, you’re doing exactly the right thing by looking into it.

Hearing loss in children is far more common than most parents realize. And while that can feel alarming, here’s what matters most: when hearing loss is caught early and managed properly, children can develop language, social skills, and academic abilities on par with their hearing peers. The key word is early.

This guide covers everything parents need to know—what causes hearing loss in children, the warning signs at every age, how it’s diagnosed, what treatment options exist, and what you can do right now if you’re concerned. We’ve drawn on guidance from the CDC, American Speech-Language-Hearing Association (ASHA), American Academy of Pediatrics, and other leading sources to give you accurate, practical information.

Let’s start with the numbers.

More common than you’d think. According to the MSD Manual, childhood hearing loss was detected in 1.8 per 1,000 infants screened in the United States in 2020. On average, 1.9% of children reported trouble hearing, and the condition is slightly more common in boys than girls.

The ASHA provides broader context: worldwide, approximately 34 million children present with a hearing loss greater than 35 dB—significant enough to require rehabilitation. In the U.S., 5,934 newborns were identified with permanent hearing loss in 2019 alone (a prevalence rate of 1.7 per 1,000).

What’s particularly striking is that hearing loss prevalence increases with age. By adolescence, estimates range from 3.5 per 1,000 cases of bilateral sensorineural hearing loss to as high as 23 per 1,000 when unilateral hearing loss is included. And according to the NCBI StatPearls review, hearing loss occurs in 1–3 per 1,000 newborns, with 1–2 per 1,000 suffering from permanent childhood hearing impairment.

Perhaps the most important statistic comes from the World Health Organization: over 60% of hearing loss in children could be avoided through preventive measures. That means more than half of all childhood hearing loss is not inevitable—it’s preventable.

Not all hearing loss works the same way. Understanding the type your child has matters because it determines what can be done about it.

As the NCBI StatPearls review explains, there are three main types of hearing loss: conductive, sensorineural, and mixed.

Conductive Hearing Loss

This happens when something blocks or disrupts the transmission of sound through the outer or middle ear. According to HealthyChildren.org, conductive hearing loss in children may involve an abnormality in the structure of the outer ear canal or middle ear, a large amount of earwax lodged in the ear canal, or fluid in the middle ear that interferes with the transfer of sound.

The NCBI review notes that the number one cause of conductive hearing loss in children is otitis media with effusion (commonly called “glue ear”). It has a bimodal peak at ages 2 and 5 and typically resolves without intervention as the Eustachian tube matures—or following the insertion of a ventilation tube.

The good news: Conductive hearing loss is often temporary and treatable. Once the underlying cause (fluid, infection, wax) is resolved, hearing usually returns to normal.

Sensorineural Hearing Loss

This type results from damage to the inner ear (cochlea) or the auditory nerve that carries sound signals to the brain. HealthyChildren.org explains that it can be present at birth or occur at any time afterward. Even without a family history of deafness, the cause is frequently genetic—parents and other family members often are unaffected because each parent is only a carrier for a hearing-loss gene.

The NCBI review emphasizes that while sensorineural hearing loss is relatively uncommon in children as a whole, it is the primary cause of permanent hearing loss in the pediatric population.

Unlike conductive hearing loss, sensorineural hearing loss is usually permanent—but it can be effectively managed with hearing aids, cochlear implants, and rehabilitation.

Mixed Hearing Loss

Sometimes children have both types simultaneously. For example, a child might have an underlying sensorineural hearing loss from a genetic cause and develop fluid in the middle ear on top of it. Each component may need to be addressed differently.

The causes of childhood hearing loss fall into two broad categories: congenital (present at birth) and acquired (develops after birth). Let’s look at each in detail.

Congenital Causes: Before and During Birth

Genetic Factors

Genetics is the leading congenital cause. According to ASHA, approximately 50% of all hearing loss in newborns is due to genetic factors—15% of which are syndromic (associated with a genetic syndrome) and 35% nonsyndromic.

The NCBI review adds that the most common cause of congenital hearing loss overall is autosomal recessive nonsyndromic hearing loss—meaning both parents are carriers of a hearing-loss gene without being affected themselves. This is why a child can be born with hearing loss even when no one in the family has ever had it.

ASHA lists many genetic syndromes that may include hearing loss as a symptom, including Down syndrome, Usher syndrome, Waardenburg syndrome, Treacher Collins syndrome, CHARGE syndrome, and Pendred syndrome, among others.

Maternal and Prenatal Infections

Infections during pregnancy are a major non-genetic cause. The MSD Manual identifies congenital cytomegalovirus (CMV) as the most common intrauterine infection in the United States, accounting for as much as 21% of all sensorineural hearing loss at birth—and up to 25% by age 4, because CMV can also cause late-onset hearing loss.

HealthyChildren.org notes that rubella (German measles), CMV, toxoplasmosis, and other infectious illnesses contracted by the mother during pregnancy can infect the fetus and result in hearing loss. The NCBI review groups these under the acronym TORCH: toxoplasmosis, rubella, cytomegalovirus, and herpes.

ASHA reports that maternal infections are responsible for 40% of all non-genetic hearing loss in newborns.

Birth Complications

Complications during birth can also lead to hearing loss. ASHA notes that prematurity, low birth weight, lack of oxygen (hypoxia), and neonatal jaundice (hyperbilirubinemia) are responsible for approximately 17% of childhood hearing loss.

The NCBI review lists high-risk neonatal factors including: congenital infections, family history of hearing loss, craniofacial anomalies, hyperbilirubinemia, very low birth weight (under 1500g), low Apgar scores, bacterial meningitis, and the need for prolonged intubation.

Acquired Causes: After Birth

Ear Infections and Fluid Buildup

This is by far the most common acquired cause. HealthyChildren.org explains that most children experience mild hearing loss when fluid builds up in the middle ear from congestion, colds, or ear infections. This hearing loss is usually temporary—normal hearing commonly returns once the congestion or infection clears.

However, in perhaps 1 in 10 children, fluid stays in the middle ear following an ear infection because of problems with the Eustachian tube. These children don’t hear as well as they typically would, and because of this, they sometimes have delays in talking.

By age 10, ASHA notes that 80% of children will have experienced at least one episode of otitis media, which can cause temporary conductive hearing loss.

Noise Exposure

This one is increasingly concerning—and entirely preventable. According to ASHA, an estimated 12.5% of children and adolescents aged 6–19 years (approximately 5.2 million) have suffered permanent damage to their hearing from excessive noise exposure. This includes loud music through earbuds, concerts, sporting events, and recreational activities.

The CDC has dedicated resources specifically focused on preventing noise-induced hearing loss in children, underscoring how significant this preventable cause has become.

Childhood Infections and Diseases

ASHA reports that vaccine-preventable diseases—including measles, mumps, meningitis, and others—may cause hearing loss in 14% of affected children, with 5% potentially experiencing profound hearing loss. The MSD Manual also lists viral infections like mumps and measles, as well as bacterial meningitis, as significant causes of acquired hearing loss.

Other Acquired Causes

The MSD Manual notes additional causes in older children: head injuries, use of ototoxic medications (such as aminoglycosides), foreign bodies in the ear canal, cholesteatoma, skull fracture, and—rarely—autoimmune disorders.

ASHA also lists ototoxic medications taken during pregnancy as responsible for approximately 4% of childhood hearing loss.

One of the most powerful things you can do as a parent is know what to look for. Hearing loss doesn’t always announce itself loudly—especially when it’s mild or develops gradually.

Newborns and Infants (0–12 Months)

HealthyChildren.org recommends contacting your pediatrician if your child:

• Doesn’t startle at loud noises by one month of age
• Doesn’t turn to the source of a sound by three to four months
• Doesn’t notice you until they see you (relying on visual rather than auditory cues)
• Concentrates on vibrating noises they can feel rather than experimenting with a variety of vowel sounds and consonants

ASHA adds these early indicators:

• Lack of reaction to voices
• Lack of attempts to locate the source of a sound
• Interruption in babbling and making new sounds

Toddlers (12–36 Months)

According to HealthyChildren.org:

• Doesn’t say single words such as “dada” or “mama” by 12–15 months
• Doesn’t say 5–10 words by 18 months
• Doesn’t combine 2–3 words by age 2 (30 months)
• Speech isn’t understandable 50% of the time by two-and-a-half years

Preschool and School-Age Children

ASHA identifies these signs in older children:

• Delayed speech and/or language development
• Difficulty following or understanding instructions
• Frequent requests for repetition (“What?” “Huh?”)
• Increased volume on the TV or other listening devices
• Difficulty expressing themselves in oral and/or written language
• Academic, behavioral, or social difficulties at school
• Feeling exhausted at the end of a school day (from the extra effort of trying to hear)
• Frustration with communication breakdowns

Often Misunderstood Signs

HealthyChildren.org highlights two signs that are frequently misinterpreted:

• Not always responding when called. This is often mistaken for inattention or defiance, but could be the result of partial hearing loss.
• Seeming to hear some sounds but not others. Some hearing loss affects only high-pitched sounds; some children have hearing loss in only one ear. They may respond to some voices or environmental sounds while completely missing others.

The MSD Manual adds that children may appear to develop well in certain settings but have problems in others—for example, they may hear fine at home but struggle in a noisy classroom because background noise makes speech discrimination much harder.

This is where the stakes are highest. HealthyChildren.org puts it plainly: hearing impairment must be diagnosed as soon as possible so that your child isn’t delayed in learning language—a process that begins the day they are born.

If a child experiences hearing loss during infancy and early childhood, even a temporary but significant impairment during this time can make it very challenging to learn spoken language or speech patterns.

The 1–3–6 Benchmark

The Joint Committee on Infant Hearing (JCIH), as cited by ASHA, endorses a clear timeline that every parent should know:

• By 1 month – All infants should undergo a hearing screening (usually before hospital discharge)
• By 3 months – Any infant who doesn’t pass screening should have a comprehensive audiologic evaluation
• By 6 months – All infants identified as deaf or hard of hearing should begin early intervention services, including access to hearing aids, cochlear implants, or hearing assistive technologies as appropriate

This 1–3–6 framework exists because research consistently shows that the earlier intervention begins, the better the outcomes for language development, communication skills, and academic achievement.

The Developmental Impact of Untreated Hearing Loss

The MSD Manual makes the stakes clear: not recognizing and treating hearing impairment can seriously impair language comprehension and speech. The impairment can lead to educational, social, and psychological challenges—and may affect employability later in life.

ASHA adds that school-age children with hearing loss often present with co-occurring developmental challenges, including intellectual disability (23%), cerebral palsy (10%), autism spectrum disorder (7%), and/or vision impairment (5%)—highlighting the importance of comprehensive evaluation and multi-disciplinary support.

Diagnosis looks different depending on your child’s age and ability to cooperate with testing. Here’s what to expect.

Newborn Hearing Screening

In the United States, newborn hearing screening is legally mandated in most states. According to the MSD Manual, screening is recommended before age 3 months. The initial test is typically evoked otoacoustic emissions (OAE) testing—a quick, painless procedure using a tiny probe placed in the baby’s ear canal that measures sound waves produced by the inner ear in response to clicks.

If results are abnormal, the baby is referred for auditory brainstem response (ABR) testing, which measures how the brain responds to sound using electrodes placed on the baby’s head. HealthyChildren.org explains that ABRs can be performed during natural sleep in infants under 3–4 months old. Older babies and toddlers may need sedation.

Testing by Age

The NCBI review outlines a clear progression of hearing tests based on the child’s age:

HealthyChildren.org emphasizes that even mild hearing loss should be properly diagnosed and treated. If screening suggests a hearing impairment, a more thorough evaluation should happen as soon as possible.

Who Performs the Evaluation?

HealthyChildren.org notes that if an impairment is detected, your child may be referred to an audiologist (hearing specialist) and/or an ENT doctor (otolaryngologist). The MSD Manual adds that if a genetic cause is suspected, genetic testing can also be done, and imaging (MRI or CT) may be indicated depending on the clinical picture.

Treatment depends on the type and severity of hearing loss, the underlying cause, and—importantly—the family’s preferences and goals. Here’s what’s available.

Medical Treatment for Conductive Hearing Loss

HealthyChildren.org explains that if the hearing loss is caused by fluid in the middle ear, the doctor may first recommend monitoring for a few months to see if the fluid clears on its own. Importantly, medications like antihistamines, decongestants, and antibiotics are ineffective at clearing middle ear fluid.

If fluid persists for three months with sufficient hearing impairment, the specialist may recommend ventilating tubes (tympanostomy tubes). These are surgically inserted through the eardrum under general anesthesia—a minor operation that takes about 15 minutes. The tubes help reduce fluid accumulation and decrease the risk of repeated infection.

For conductive hearing loss caused by infection, the NCBI review notes that antibiotics are the primary treatment, with surgical myringotomy tubes as the next step when medical management isn’t sufficient.

Hearing Aids

For children with sensorineural or persistent conductive hearing loss, hearing aids are often the first line of treatment. HealthyChildren.org stresses that early placement of hearing aids is critical to give children awareness of sound and language during the crucial developmental window.

In children with mild to moderate sensorineural hearing loss, hearing aids can improve hearing so much that most children can develop normal speech and spoken language—provided they receive the devices early enough.

The NCBI review describes several types used in pediatric settings:

• Binaural air conduction hearing aids – The standard type; available as behind-the-ear, in-the-canal, or in-the-ear styles
• Bone conduction hearing aids – Used when ear problems (like external ear deformities or chronic infections) prevent the use of regular hearing aids. Bone-anchored hearing aids (BAHAs) are typically fitted from age 4, but soft-band versions can be used from several weeks of age
• CROS hearing aids – For unilateral sensorineural hearing loss; diverts sound from the affected ear to the better ear

Cochlear Implants

For children with severe or profound hearing loss who get little or no benefit from hearing aids, cochlear implants can be transformative. HealthyChildren.org explains that the best outcomes come with early implantation—ideally by one year of age rather than after age three.

The MSD Manual confirms that cochlear implantation in children under 12 months is becoming increasingly common and has shown clear benefits for communication and development.

Most children with typical development who get cochlear implants early, along with intensive therapy after surgery, can develop good to excellent hearing and can be supported in a mainstream educational setting.

Hearing Assistive Technology Systems (HATS)

Beyond hearing aids and implants, ASHA describes a range of classroom and daily-life technologies:

• Personal FM/DM systems – Transmit the teacher’s voice directly to a child’s hearing aids, cutting through classroom noise
• Sound field amplification – Amplifies the speaker’s voice for the entire room
• Induction loop systems – Convert sound to magnetic signals picked up by hearing aids with telecoils
• Personal streaming systems – Use Bluetooth to stream audio directly to hearing devices
• TV assistive devices – Make television content clearer without raising the volume for everyone else

These technologies can make an enormous difference in educational settings, where background noise is one of the biggest barriers to learning for children with hearing loss.

This is the question every parent asks first: will my child learn to talk?

HealthyChildren.org answers honestly: optimally timed cochlear implantation will greatly improve the chances of learning spoken language, but not all children may learn to speak clearly. However, all children with hearing loss can be taught to communicate.

Spoken Language

With early intervention—hearing aids or cochlear implants fitted in the first months of life, combined with speech therapy and auditory training—many children with hearing loss develop spoken language skills comparable to their hearing peers. The earlier the intervention, the better the outcomes.

Sign Language

For children who didn’t get enough improvement from hearing aids or cochlear implants to develop spoken language—or for families who choose this path—sign language is a fully valid form of communication.

HealthyChildren.org encourages parents to learn sign language along with their child, and to encourage friends and extended family to learn it too. Written language is also emphasized as critical for educational and career success.

Aural Rehabilitation

ASHA describes aural rehabilitation as an interactive, individualized, family-centered process that facilitates a child’s ability to minimize the limitations that hearing loss can impose. This may include:

• Education and counseling for the child and family
• Selection and fitting of amplification devices
• Auditory training and speech-language therapy
• Classroom accommodations and educational support
• Hearing assistive technology in school and at home

The WHO’s finding that over 60% of childhood hearing loss is preventable is both sobering and empowering. Here are concrete steps:

Before and During Pregnancy

• Get vaccinated. Rubella vaccination before pregnancy eliminates one of the major infectious causes of congenital hearing loss
• Manage maternal health. Proper prenatal care, managing diabetes, and avoiding ototoxic medications during pregnancy all reduce risk
• Be aware of CMV. Cytomegalovirus is the leading non-genetic cause of congenital hearing loss. Good hygiene practices—especially around young children—reduce transmission risk

After Birth

• Complete newborn hearing screening. Don’t skip it, and follow up promptly if your baby doesn’t pass
• Vaccinate your child. ASHA notes that vaccine-preventable diseases like measles, mumps, and meningitis can cause hearing loss in 14% of affected children
• Treat ear infections promptly. While most are temporary, chronic untreated infections can lead to lasting hearing damage
• Protect against noise. Teach children about safe listening levels, enforce volume limits on headphones, and use hearing protection at loud events. The CDC has dedicated guidance on preventing noise-induced hearing loss in children

The Noise Problem

This deserves special emphasis. ASHA reports that 12.5% of children aged 6–19 have already suffered permanent hearing damage from excessive noise. With earbuds and headphones now ubiquitous from early ages, teaching the 60/60 rule (no more than 60% volume for no more than 60 minutes at a time) and investing in volume-limiting headphones can genuinely protect your child’s hearing for life.

A hearing loss diagnosis can feel overwhelming. But the NCBI review emphasizes that the key is awareness and education—not just for your child, but for caregivers, teachers, and the broader community.

Building a Support Team

ASHA describes the ideal care team as including audiologists, speech-language pathologists, ENT specialists, pediatricians, educational psychologists, geneticists, and specialist nurses. The NCBI review adds social workers, who connect families to resources, school accommodations, and community support.

At School

Work with your child’s school to ensure appropriate accommodations:

• Preferential seating (close to the teacher, away from noise sources)
• FM/DM systems that transmit the teacher’s voice directly to hearing aids
• Written instructions to supplement verbal ones
• Access to a teacher of the deaf or educational audiologist
• An Individualized Education Program (IEP) or 504 plan if needed

At Home

The NCBI review recommends creating a “deaf-friendly environment”: minimize background noise during conversations, talk face-to-face, use clear intonation, and make use of hearing assist devices for TV and other media.

Emotional Support

Children with hearing loss are at higher risk for social isolation, frustration, and emotional challenges. ASHA stresses that family involvement is critical—families who are actively engaged in the assessment and treatment processes achieve better outcomes and promote successful language development.

If you notice any of the warning signs described above, don’t wait. HealthyChildren.org is clear: at any time during your child’s life, if you or your pediatrician suspect hearing impairment, insist that a formal hearing evaluation be performed promptly.

• Start with your pediatrician – They can do basic hearing checks and refer you to a specialist
• See an audiologist – For comprehensive hearing testing, hearing aid fitting, and ongoing hearing management
• See an ENT (otolaryngologist) – If there’s a medical or surgical cause that needs treatment (infections, structural issues, cochlear implant evaluation)

For more on choosing between these specialists, see our guide on when to see an audiologist vs. ENT.

Hearing loss in children is common, but it doesn’t have to define your child’s future. The science is clear: early identification and early intervention are the most powerful tools we have. Children who receive appropriate support—whether through hearing aids, cochlear implants, sign language, or a combination—can thrive socially, academically, and personally.

Here’s what to remember:

• Know the signs. Familiarize yourself with age-appropriate hearing and speech milestones
• Don’t wait. If something seems off, trust your instincts and get a professional evaluation
• Follow the 1–3–6 benchmark. Screen by 1 month, diagnose by 3 months, intervene by 6 months
• Prevention matters. Vaccination, noise protection, and prenatal care can prevent more than half of all childhood hearing loss
• You’re not alone. A strong team of audiologists, ENTs, speech therapists, and educators can support your child every step of the way

The earlier you act, the more doors you open for your child. And that’s worth every effort.

Concerned about your child’s hearing? Start with your pediatrician or book a hearing evaluation with a pediatric audiologist. Early action is the single most impactful thing you can do for your child’s communication, learning, and quality of life.