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Body system: Ears, hearing and balance. One of the core guides in our dog health conditions library. If your dog has worrying signs right now, start with our symptom triage guides.
Deafness in dogs means a loss of hearing in one or both ears, and it comes in two broad kinds. Congenital deafness is present from birth or the first weeks of life and is usually inherited, linked in many breeds to the genes that produce white or merle patterned coats. The hearing structures never develop normally, and the deafness is permanent. Acquired deafness develops later, from disease or injury of the ear canal, eardrum or middle ear (conductive deafness, sometimes reversible), or from degeneration or damage of the inner ear and its nerve (sensorineural deafness, usually permanent). Old age deafness, presbycusis, is the commonest acquired form and arrives gradually in senior dogs.
Testing matters for practical reasons, not curiosity: a deaf puppy needs different training from day one, a dog whose deafness is conductive may regain hearing with treatment, and congenitally deaf dogs should be removed from breeding, which protects future puppies. Deafness sits alongside the other ear problems in our ear infections guide, which covers the discharge and head shaking diseases of the canal.
Congenital deafness follows coat color genetics in many breeds: the pigment genes that produce extensive white or merle patterning are associated with degeneration of the blood supply to the developing inner ear in the first weeks of life, and puppies deaf in one or both ears result. It is a developmental fault, not an infection, and nothing done during pregnancy causes or prevents it in an individual puppy. Acquired conductive deafness comes from anything that blocks or damages the sound path: chronic otitis externa with a swollen, narrowed canal, packed wax and debris, a ruptured eardrum, or middle ear infection.
Sensorineural deafness has its own list: age related degeneration of the inner ear hair cells in seniors, noise trauma, certain medications that are toxic to the inner ear, hypothyroidism associations in some reports, tumors and the spread of deep ear infection. The distinction is not academic: conductive losses can improve when the canal is cleaned and the disease treated, sensorineural losses do not.
Breeds and dogs at higher risk: Congenital deafness is documented in more than eighty breeds, most strongly those with white or merle coats. Breeds with the highest reported rates include Dalmatians, Australian Cattle Dogs, Bull Terriers, English Setters, English Cocker Spaniels, Boston Terriers, Parson Russell Terriers, Catahoula Leopard Dogs and Australian Shepherds. Acquired and age related deafness can affect any breed.
The definitive test is the BAER test, brainstem auditory evoked response. Small electrodes on the head record the brain electrical response to clicks delivered into each ear canal, testing each ear separately and giving an objective answer in a puppy from about five to six weeks of age. Breeders of at risk breeds use BAER testing to classify every puppy in a litter, and it is the standard your vet will recommend when congenital deafness is in question, because behavioral tests cannot reliably detect a puppy deaf in only one ear.
For acquired deafness, the workup starts with the ears themselves: otoscopic examination of the canal and eardrum, sometimes under sedation in a sore ear, cytology and culture of debris, and imaging if middle ear disease is suspected. Knowing which kind of deafness your dog has decides whether treatment can help, so the examination is worth doing even in an old dog.
Congenital and other sensorineural deafness have no medical or surgical cure, and hearing aids are almost never a practical answer in dogs. Conductive deafness is the treatable category. Clearing a blocked canal, curing infection, treating middle ear disease and managing the underlying skin or allergy problem that drives chronic ear disease can restore useful hearing, sometimes dramatically, in a dog whose inner ear is intact.
Drug related deafness deserves a specific mention: several medications, including some ear preparations used when the eardrum is ruptured and certain injectable antibiotics and diuretics, can injure the inner ear. If hearing drops during treatment of any kind, tell your vet promptly rather than waiting for the course to end, because early withdrawal of a culprit drug gives the best chance of partial recovery.
Living with a deaf dog runs on eyes and vibration. Teach hand signals from the start, one clear gesture per cue, rewarded exactly as verbal cues are; most deaf dogs learn a working vocabulary of signals quickly and watch their people more attentively than hearing dogs do. Vibration is your doorbell: stomp on the floor to announce yourself, tap the ground beside a sleeping dog instead of touching them awake, and consider a vibration collar used only as an attention signal, never as punishment, for recall work. Keep a deaf dog on leash or in fenced areas outdoors without exception: they cannot hear traffic, other dogs warnings or your voice, so a reliable visual recall inside a safe space is the whole safety plan.
At home, approach within the dog field of view where possible, wake them with a gentle floor vibration or a touch in the same predictable spot, and keep household routines consistent, which deaf dogs find reassuring. Inform visitors, especially children, and put a tag on the collar that says the dog is deaf, so that if they are ever lost, a finder understands why the dog does not respond. Senior dogs losing hearing need the same adjustments introduced gradually, plus a vet check to be sure nothing treatable is hiding behind the assumption of old age.
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Home tests, clapping behind the puppy, are unreliable, especially for deafness in only one ear. The definitive test is a BAER hearing test, available at referral centers and some breed health clinics, which measures the brain response to sound in each ear separately, from about five to six weeks of age.
It depends on the type. Deafness from a blocked, infected ear canal or middle ear disease can improve, sometimes a great deal, once the canal is cleared and the disease treated. Age related inner ear degeneration is permanent, but a vet check is still worthwhile to catch the treatable causes hiding behind an assumption of old age.
The pigment producing genes that create extensive white or merle patterning also influence development of the inner ear blood supply in the first weeks of life. When pigment cells are absent in the inner ear, the hearing structures degenerate. Not every white or merle dog is deaf, but the association is strong enough that hearing testing is standard in at risk breeds.
Yes. Deaf dogs train readily with hand signals, bond closely and enjoy normal lives with sensible safety rules: leash or fenced areas outdoors, visual rather than voice recall, and waking by vibration rather than a startling touch. Deafness changes communication, not quality of life.
No. Congenital deafness in the coat linked form is inherited, and breeding deaf dogs, or untested dogs from at risk breeds, increases the number of deaf puppies. BAER testing breeding stock and puppies is the accepted standard in affected breeds, and known deaf dogs are not bred.
This page is general information drawn from the published guidance of the organizations listed under Sources below. It is not veterinary advice, and it does not replace your own veterinarian, who knows your dog. If your dog may have eaten something toxic, contact your veterinarian, the ASPCA Animal Poison Control Center on (888) 426-4435, or the Pet Poison Helpline on (855) 764-7661 straight away. A consultation fee may apply on the helplines. If your dog is struggling to breathe, has collapsed, is having a seizure that will not stop, or has a swollen belly with retching that brings nothing up, go to an emergency veterinarian now and do not wait to finish reading.
Last updated: November 2026. Facts on this page were checked against the sources listed above. How we work: our methodology.