Deafness in Dogs: Causes, Signs, and Living with a Deaf Dog

Aug 19 • 10 min read

You call your dog's name across the room. Nothing. No ears perking up, no tail wag, no turn of the head. Your first thought is that he's being stubborn. But if this keeps happening, the real answer might be simpler and a little more serious your dog may not be hearing you at all.

Deafness in dogs can be present from birth (congenital) or develop later in life (acquired) from ear infections, wax buildup, injury, loud noise, certain drugs, or age-related changes inside the ear. Some breeds, especially those with white or merle coats, are far more likely to be born deaf. Deaf dogs feel no pain from the condition itself, but with the right training and safety precautions, they go on to live full, happy lives.

Key Takeaways

Deafness in dogs is either congenital (present from birth) or acquired (develops later in life), and the causes and outlook differ for each.
Breeds with white, merle, or piebald coat patterns like Dalmatians, Australian Cattle Dogs, and Bull Terriers carry a much higher genetic risk of congenital deafness.
Acquired deafness from a blocked or infected ear canal often improves with treatment, while deafness from ageing, loud noise, or certain drugs usually does not.
The clearest sign of deafness is a dog failing to wake, alert, or respond to sound not "selective hearing."
A BAER (Brainstem Auditory Evoked Response) test is the only way to confirm deafness with certainty, especially in one ear.
Deaf dogs are not in pain and are not less intelligent they simply need visual and touch-based cues instead of verbal ones, plus extra safety precautions outdoors.

What Is Deafness in Dogs?

Infographic comparing congenital and acquired causes of deafness in dogs

Deafness is the partial or complete loss of hearing in one or both ears. According to the Merck Veterinary Manual, deafness can be present at birth (congenital) or develop later from infection, injury, or changes to the cochlea. It can affect one ear (unilateral) or both (bilateral), and unilateral deafness is especially easy to miss because a dog can still respond to sound using the working ear.

Congenital Deafness: Present from Birth

Congenital deafness is something a puppy is born with, and in most cases it comes down to genetics. Per the Merck Veterinary Manual, congenital deafness can be inherited or caused by damage before birth from a poisonous substance or a virus, and some dogs with grayish-blue and white coat patterns are deaf.

This is why certain breeds show up again and again in deafness statistics. Breeds commonly affected include the Dalmatian, Bull Terrier, Australian Heeler, Catahoula, English Cocker Spaniel, Parson Russell Terrier, and Boston Terrier, though the list changes over time. Merck's professional-level reference on the topic explains why: hereditary deafness is the most common type of deafness in dogs and cats and should be the first diagnosis considered in an animal with any white pigmentation, since cochleosaccular deafness is most common in dogs with the piebald or merle pigmentation genes, can be unilateral or bilateral, and is often associated with blue eyes and white pigmentation affected ears are totally deaf.

The Dalmatian is the breed most closely studied for this. A large peer-reviewed genetic survey of nearly 9,000 Dalmatian puppies in the UK, published in the Journal of Veterinary Internal Medicine (accessible via PubMed Central), found an overall prevalence of congenital sensorineural deafness of 17.8%, with 13.4% affected in one ear and 4.4% affected in both ears. In the United States, prevalence has been reported as high as 30% (8% bilateral, 22% unilateral). The same research links this directly to coat genetics puppies with blue eyes carry a notably higher risk, while those with a pigmented patch on the head carry a lower one.

Why this timing matters: Cochleosaccular deafness develops within 1 to 3 weeks after birth, secondary to degeneration of the inner ear structures caused by melanocyte suppression from the pigmentation gene meaning affected puppies are often already deaf by the time most owners bring them home.

Acquired Deafness: Developing Later in Life

Cross-section diagram of a dog's ear showing where blockages and infections cause acquired deafness

Acquired deafness shows up after birth, and it has a much wider range of causes some reversible, some permanent.

Blockages and infections. The Merck Veterinary Manual notes that acquired deafness can result from blockage of the external ear canal due to chronic inflammation (otitis externa) or a buildup of earwax, and it can also occur with a ruptured eardrum or inflammation of the middle or inner ear hearing often returns after these problems are resolved. This is one of the most encouraging facts about acquired deafness: a large share of it is treatable. Related Merck guidance on middle and inner ear infections confirms that otitis media can progress to otitis interna, which can cause balance loss and deafness, and that otitis media is present in more than half of dogs with long-term, recurrent inflammation of the external ear which is exactly why chronic, poorly-managed ear infections are worth treating early and thoroughly, not just when they flare up.

Permanent causes. Not every case resolves. Permanent acquired deafness most often arises from age-related changes to the cochlea. Other causes include inner ear trauma, very loud noises, diseases, drugs (like certain antibiotics), anesthesia, and tumors.

Type	Onset	Common Causes	Usually Reversible?
Congenital	Birth to first few weeks of life	Inherited pigmentation genes, toxins or viral damage before birth	No
Acquired (blockage/infection)	Any age	Ear wax buildup, chronic otitis externa, ruptured eardrum, middle/inner ear infection	Often, once treated
Acquired (permanent)	Usually older age	Age-related cochlea changes, trauma, loud noise, ototoxic drugs, tumors	No

Recognising the Signs of Deafness in Your Dog

Because dogs can't tell you what they're experiencing, owners have to read behaviour instead. The Merck Veterinary Manual is direct about what to watch for: the main sign of deafness is failure to respond to sounds for example, failure to awake or alert to a noise. Beyond that:

Increased or changed barking, or noticeably different vocal tone
Hyperactivity or general confusion, especially with commands the dog used to know
Confusion with familiar voice commands the dog previously responded to
Reduced or absent ear movement toward sounds
Not responding to, or refusing to come when called this is especially common in gradual hearing loss in older dogs

Hearing loss can be partial or total and can affect one or both ears. Partial deafness, or deafness affecting only one ear, is hard to detect and often requires careful observation or electronic tests so a dog that seems to hear "sometimes" isn't necessarily faking it; they may genuinely be relying on one working ear.

One important note on timing: Young animals, or those in a group, can copy others, making deafness hard to detect. It's easier to notice deafness in dogs once they're about 3 to 4 weeks old, especially if they can be seen alone, away from other dogs. If you're evaluating a young puppy, test them individually rather than as part of the litter.

How Vets Diagnose Deafness

Veterinarian performing a BAER hearing test on a dog to diagnose deafness

A vet doesn't rely on guesswork here. According to the Merck Veterinary Manual, a vet may perform an otoscope exam, X-rays, CT scan, MRI testing, and other exams to reveal causes of deafness, especially acquired deafness. For breeds known to carry a genetic risk, there's a specific gold-standard test: in dog breeds more likely to have congenital deafness, electronic testing helps assess puppies' hearing.

That electronic test is the Brainstem Auditory Evoked Response (BAER) test. It measures the brain's electrical response to sound and is the only reliable way to confirm hearing status in each ear individually which matters enormously, since unilateral deafness can be objectively and noninvasively diagnosed by BAER testing in ways a simple behavioural test at home cannot. Reputable breeders of high-risk breeds routinely BAER-test litters before placing puppies, and this is worth asking about if you're bringing home a Dalmatian, Bull Terrier, or another breed on the affected-breeds list.

Can Deafness in Dogs Be Treated?

The honest answer depends entirely on the cause.

Often improves: Deafness from ear canal blockage often improves with medical or surgical treatment. Bacterial infections of the middle and inner ear may respond to antibiotics. This is why a sudden change in hearing, especially alongside signs like head shaking, odour, or discharge, is worth a prompt vet visit rather than "waiting it out" the underlying otitis may still be treatable.

Usually permanent: Deafness from exposure to severe noise, trauma, or certain drugs is unlikely to improve, and the same applies to congenital deafness and most age-related cochlear changes. In these cases, treatment shifts from "curing" the hearing loss to helping the dog and owner adapt.

A note for breeders and owners of affected breeds: Dogs with congenital deafness should generally not be used in breeding programs, since the underlying genetics can be passed to puppies.

Living with a Deaf Dog

This is the part that worries new owners most, and it's also the most reassuring. Deaf dogs don't feel pain from being deaf, but they do need more care and attention. Deaf dogs are more easily startled, which can increase the risk of biting, and they are less protected from dangers like vehicles. Once you understand those two risks being startled, and being unaware of danger the adjustments are very manageable.

According to VCA Animal Hospitals, deaf dogs are just like hearing dogs in all other ways, and with a bit of thought, consideration, and training for both dog and human deaf dogs can lead normal, long, rich, and happy lives.

Safety First

Always leash your dog outdoors, especially in unfenced or traffic-heavy areas. A deaf dog cannot hear an approaching vehicle, a scooter, or another dog closing in.
Approach carefully when they're asleep or unaware. Since they can't hear you coming, a startled dog may react defensively. Gently touch them in the same spot each time, paired with a treat, so being woken becomes a predictable, positive experience rather than a shock.
Consider a collar tag or leash cover noting "I'm deaf," so anyone who finds your dog off-lead knows to approach calmly and won't assume they're simply ignoring a recall.

Communication and Training

Deaf dogs learn exactly as well as hearing dogs they simply learn through a different channel. Deaf dogs quickly learn to pay close attention to their surroundings, which makes it easy to work with their instincts when training. Because dogs naturally look to their humans for guidance, once we have their attention, we can teach them to associate specific hand signals and body language with the behaviors we desire.

Practical building blocks that work well:

Hand signals for every command a flat palm for "sit," a sweeping motion for "stay," and so on. Consistency matters more than which signal you choose.
A "watch me" cue to get your dog's attention before giving any instruction, since they need to be looking at you to catch a signal.
Touch-based cues, especially useful for waking a sleeping dog or getting attention from behind always touch the same spot so it isn't confused with an affectionate pat.
Positive reinforcement, exactly as you'd use with a hearing dog: signal, reward the correct behaviour, repeat.
A structured daily routine, which helps house-train deaf dogs and also teaches them when and where meals happen. If you have another dog in the home with normal hearing, the deaf dog will often take behavioural cues from their companion too.

For breeds or individuals with a known predisposition, it's worth working with a trainer experienced in deaf-dog handling, particularly for recall training in open spaces.

A Quick Note for Indian Pet Parents

Street dog encounters, unfenced terraces, and busy monsoon-season roads are everyday realities in most Indian neighbourhoods and they're exactly the situations where a deaf dog's reduced awareness of traffic and approaching animals matters most. A secured terrace or balcony, a well-fitted harness for walks, and a leash used consistently (even in a housing society compound) go a long way toward keeping a deaf dog safe in these settings.

FAQ

How can I tell if my dog is deaf or just ignoring me?
Test it directly: stand where your dog cannot see you, and make a sound (a clap, a whistle, a squeaky toy) without any visual or vibration cue reaching them. A dog that is ignoring you selectively will usually still react to sounds that interest them, like a treat bag; a genuinely deaf dog won't respond to any sound at all when they can't see or feel it. If you're unsure, a vet visit and BAER test will give a definitive answer.

Is my dog in pain because they're deaf?
No. Deafness itself is not painful, and a deaf dog isn't suffering from the hearing loss the way they might from an ear infection. The bigger risks are behavioural and situational being startled more easily, or missing warning sounds like traffic or another animal approaching not physical discomfort from the deafness itself.

Can a deaf dog still be trained normally?
Yes, completely. Deaf dogs learn commands like sit, stay, and come just as reliably as hearing dogs the only change is that verbal cues are replaced with hand signals, touch, or visual cues. Many trainers note that deaf dogs, because they rely so heavily on watching their owner, often become excellent at reading body language.

My dog is a Dalmatian (or another high-risk breed) how do I know if she was born deaf?
The only reliable way to know for certain, especially for one-ear deafness, is a BAER test performed by a vet, ideally done in puppyhood. Watching for a lack of response to sound at 3–4 weeks of age when the puppy is alone (not copying littermates) can offer an early clue, but it isn't a substitute for the test.

My senior dog seems to be losing his hearing gradually is that normal ageing, or something to treat?
Gradual hearing loss in older dogs is often age-related cochlear change, which usually isn't reversible. That said, it's still worth a vet visit to rule out a treatable cause like a blocked ear canal, wax buildup, or a chronic infection since some of what looks like "just old age" may actually be fixable.