# Dog Losing Hearing: Causes and What You Can Do

Dog losing hearing usually happens for one of two reasons: changes to the inner ear that come with age, or a problem in the ear canal that blocks sound from getting through. Some causes are temporary and treatable, and some are permanent. Either way, you can do a lot to keep your dog safe, comfortable, and connected to you.

This article is educational and is not a substitute for veterinary diagnosis or treatment.

## Quick Answer

- Age-related hearing loss is the most common permanent cause in dogs, and it usually comes on slowly over months to years [1].
- Ear infections, wax buildup, and a ruptured eardrum can cause hearing loss that often improves once the ear problem is treated [1].
- Partial hearing loss or deafness in only one ear is easy to miss, so owners often notice nothing until both ears are affected [1][2].
- A veterinarian can examine the ear canal with an otoscope and, when needed, use electronic testing to confirm how much hearing is left [1][2].
- Hard-of-hearing dogs do well with hand signals, vibration cues, and a few simple safety changes at home [3].

## What Hearing Loss Looks Like in Dogs

The classic sign is a dog who no longer responds to sound. He may sleep through a doorbell, a knock, or you calling his name [1]. He might not wake when you come home, and he may not turn his head toward a noise behind him.

Other signs are less obvious. Some dogs bark more than usual, or their bark sounds different. Some seem hyperactive, confused, or suddenly "stubborn" about voice commands. You may notice his ears no longer move or perk at sounds [1].

Gradual hearing loss in an older dog often shows up as not coming when called or seeming to ignore you [1]. Owners frequently mistake this for stubbornness or a behavior problem. If your dog has stopped responding to his name but still reacts to a hand clap or a light tap on the floor, hearing loss is a strong possibility.

### One Ear Versus Both Ears

Hearing loss can be partial or total, and it can affect one ear or both [1]. Deafness in only one ear is very hard to detect at home. Your dog may turn toward sound on one side but not the other, or he may seem fine in quiet rooms and confused in noisy ones. Confirming one-sided deafness usually takes careful observation or electronic testing [1].

### Normal Aging Versus Something Else

It helps to know what is normal. Older dogs slow down, sleep more, and may develop cloudy eyes. None of that explains a sudden failure to hear. A dog who was hearing fine last week and is unresponsive today needs a veterinary visit, not a wait-and-see approach.

If hearing changes come along with vision changes, the combination can be especially disorienting. Dogs who are losing both senses often startle easily and may snap when approached from behind. Managing both at once takes some planning, and your vet can help you sort out what is sensory and what might be cognitive [3].

## Main Causes of a Dog Losing Hearing

### How Do Dogs Lose Their Hearing?

Dogs lose hearing either because sound cannot travel through the ear (a blockage or damage in the outer or middle ear) or because the nerve structures that turn sound into signals for the brain are damaged. The second type is usually permanent. The first type often is not.

Acquired deafness, meaning hearing loss that develops after birth, can come from a blocked ear canal due to chronic inflammation (otitis externa) or a buildup of earwax. It can also follow a ruptured eardrum or inflammation of the middle or inner ear. Hearing often returns after these problems are resolved [1].

Permanent acquired deafness most often comes from age-related changes to the cochlea, the sound-sensing structure in the inner ear. Other causes include inner ear trauma, very loud noises, diseases, certain drugs (including some antibiotics), anesthesia, and tumors [1].

Some dogs are born deaf. Congenital deafness is most often linked to coat color and pigmentation patterns, including white coats, and it is inherited [2]. This is why certain breeds are screened as puppies with electronic hearing tests [1].

### When Do Dogs Lose Their Hearing?

Age-related hearing loss, called presbycusis, is the most common permanent cause in dogs [1]. It typically develops in the senior years, and it tends to be gradual. Research on senior dogs has found changes in the central hearing pathway as dogs age, which means the brain's processing of sound can shift along with the ears themselves [4].

Because the decline is slow, many owners adapt without realizing it. You might start using louder commands, or you might assume your dog has become less interested in you. If you have a senior dog, it is reasonable to ask your vet to check hearing at routine visits [3].

### Table: Common Causes at a Glance

| Cause | Typical clues | How urgent |
|---|---|---|
| Ear infection or wax blockage | Head shaking, scratching at ears, odor, discharge, redness | See a vet soon. Often reversible with treatment [1] |
| Ruptured eardrum | Pain when the ear is touched, discharge, recent ear cleaning or trauma | See a vet promptly. Some medications can damage the ear further [1] |
| Age-related hearing loss | Slow onset in a senior dog, no pain, otherwise healthy | Routine visit. Usually permanent [1] |
| Noise trauma | Sudden hearing loss after fireworks, gunshots, or loud machinery | See a vet soon. May be permanent [1] |
| Medication-related hearing loss | Hearing change after starting or applying ear or systemic drugs | Call your vet right away [1][5] |
| Congenital deafness | Puppy does not startle to sound, often white-coated breed | Routine visit with electronic testing [1][2] |
| Inner ear or vestibular disease | Head tilt, wobbling, abnormal eye movement, vomiting | Emergency or same-day visit [6] |

## Red Flags That Mean Emergency or Same-Day Care

Some signs point to a problem beyond simple hearing loss. Get help right away if you see any of these.

- Sudden head tilt, circling, falling to one side, or eyes flicking back and forth. These suggest a vestibular problem, which can involve the inner ear or the brain [6].
- Hearing loss that appears within hours, especially after a loud event or a new medication [1][5].
- Severe ear pain, swelling, bleeding, or a foul discharge from the ear canal.
- Hearing loss along with weakness, seizures, or a change in consciousness.
- A dog who cannot stand or walk without support.

Vestibular episodes can come and go. One reported case described a dog with recurrent episodes of wobbling, head tilt, and abnormal eye movements lasting from 30 minutes to several hours, with hearing loss confirmed on testing [6]. Episodes like that need a full workup, not watchful waiting.

## What You Can Do at Home While You Wait

You cannot restore hearing at home, but you can reduce risk and keep your dog comfortable until the appointment.

**Stop cleaning the ears.** If the eardrum may be torn, putting anything into the ear canal can cause more harm [1]. Do not use cotton swabs, home remedies, or leftover ear drops from another pet.

**Check your medication list.** Some drugs, including certain antibiotics, are linked to hearing loss [1]. Reports of hearing problems after topical ear medications exist, and older dogs made up most of those reports [5]. Do not stop a prescribed medication on your own. Call your vet and ask.

**Reduce noise.** Keep your dog away from fireworks, power tools, and loud music. Noise trauma is a recognized cause of permanent hearing loss [1].

**Use vibration and light instead of sound.** Stomp on the floor, flick the lights, or wave your hand where your dog can see you. These cues work when sound does not.

**Approach from the front.** A dog who cannot hear you coming is easy to startle. Touch him gently on the shoulder or chest instead of his back or head.

**Keep him leashed outdoors.** A dog who cannot hear traffic, other dogs, or your recall cue is at real risk. A long line in a quiet yard is safer than off-leash time in an open area.

**Watch for behavior changes.** Deaf dogs can develop new problems like increased barking, anxiety, or startle-related snapping. These are manageable, and there is specific help for them. See [Deaf Dog Behavior Problems](/knowledge/veterinary-medicine/behavior/deaf-dog-behavior-problems) for practical strategies.

If your dog's ear problem involves itching, discharge, or hair loss around the ears, those articles may help you describe what you are seeing: [Dog Ear Infection with Hair Loss: What's Going On?](/knowledge/veterinary-medicine/skin-allergy-and-ear-care/dog-ear-infection-hair-loss) and [Dog Hair Loss on Ears: Causes and Treatment Options](/knowledge/veterinary-medicine/skin-allergy-and-ear-care/dog-hair-loss-on-ears). If you are wondering whether an ear infection needs treatment at all, start here: [What Can I Do For Dog With Ear Infection](/knowledge/veterinary-medicine/clinical-methods/what-can-i-do-for-dog-with-ear-infection).

## What Your Veterinarian Will Check and Test

### The Physical Exam

Your vet will start by looking in both ear canals with an otoscope. This can reveal wax buildup, inflammation, discharge, a foreign object, or a torn eardrum [1]. Your vet will also check the nerves around the face and head, since some causes of deafness affect those too.

### Imaging and Lab Work

Depending on what the exam shows, your vet may recommend x-rays, a CT scan, or an MRI to look for causes of acquired deafness that are not visible on the surface [1]. Blood work may be part of the picture if a disease or a drug is suspected.

### Electronic Hearing Tests

The most definitive test for deafness is the brainstem auditory evoked response, or BAER test [2]. Small electrodes pick up the brain's electrical response to clicks played through a headphone. It tells your vet whether each ear is hearing and how well. In breeds prone to congenital deafness, BAER testing is used to assess puppies [1].

### Newer Behavioral Testing

Veterinary audiology has traditionally lacked ways to assess how the brain processes sound, as opposed to whether the ear detects it. Newer behavioral tests have been developed for companion dogs. One test checks whether a dog turns toward a sound source, and another pairs a sound with a reward to see if the dog can learn and respond to the cue. In a study of adult dogs with normal hearing, deaf dogs, and senior dogs, the hearing dogs responded and learned the sound-reward task while the deaf dogs did not, and the senior dogs were able to complete both tasks [7].

This matters because it separates "the ear is not picking up sound" from "the brain is not making sense of sound." Both can happen in older dogs [4][7].

### Treatment Expectations

If the cause is a blocked ear canal, treating the obstruction may improve hearing [2]. For most other forms of deafness, there is no treatment that restores hearing [2]. That is why the focus shifts to management, safety, and communication.

## Prevention and Monitoring

You cannot prevent age-related hearing loss. You can lower the odds of the preventable causes.

- Keep ears clean and dry, and treat infections early. Chronic inflammation and wax buildup are reversible causes of hearing loss [1].
- Avoid unnecessary loud noise exposure. Noise trauma is a known cause of permanent deafness [1].
- Ask about hearing risk before starting certain medications, especially in older dogs [1][5].
- Screen puppies in breeds with a higher risk of congenital deafness using electronic testing [1].
- Add a hearing check to senior wellness visits. Sensory decline is common in aging dogs and is often underrecognized, so it helps to ask directly [3].

### Living Well With a Hard-of-Hearing Dog

Training is the single best tool you have. Teach hand signals for sit, stay, come, and down. Use a flashlight or a vibrating collar (not a shock collar) to get attention at a distance. Reward often, and keep sessions short.

Keep a predictable routine. Tell visitors to approach slowly and from the front. If your dog is losing vision as well as hearing, keep furniture in place and use textured rugs or mats to mark paths through the house. Dogs who lose both senses can still have a good quality of life with a little structure [3].

## Limitations and When to Contact a Veterinarian

This article covers general information only. Every dog is different, and individual cases need a veterinarian who can examine your dog, look in the ears, and decide what testing is appropriate.

**Call now or go to an emergency clinic** if your dog has a sudden head tilt, circling, inability to stand, vomiting with wobbling, seizures, or a rapid decline in awareness [6].

**Call the same day** if hearing loss appeared suddenly, if your dog is in ear pain, if there is discharge or bleeding from the ear, or if hearing changed after a new medication or ear drops [1][5].

**Schedule a routine visit** if your senior dog is gradually responding less to sound, if you suspect one-sided deafness, or if you want a baseline hearing assessment [1][3].

## Frequently Asked Questions

### Can a dog regain hearing after losing it?

Sometimes, yes. If the cause is a blocked ear canal from inflammation or wax, or a ruptured eardrum that heals, hearing often returns once the problem is resolved [1]. If the cause is age-related change to the inner ear or damage to the hearing nerve, hearing does not come back [1][2].

### How can I tell if my dog is going deaf or just ignoring me?

Test it without your voice. Clap, jingle keys, or tap the floor behind your dog when he is awake and not looking at you. A hearing dog will orient toward the sound, while a deaf dog will not [7]. If he responds to vibration but not sound, hearing loss is likely.

### Is deafness in dogs painful?

Deafness itself is not painful. The conditions that cause it can be. Ear infections, a ruptured eardrum, and inner ear inflammation can all hurt, and those are the cases where hearing may improve with treatment [1]. If your dog is head shy, yelping, or pawing at an ear, assume pain and call your vet.

### Should I let my deaf dog off leash?

No, not in an unfenced area. A dog who cannot hear traffic, other animals, or your recall cue cannot be kept safe by voice alone. Use a fence or a long line, and teach a visual recall signal such as a raised arm or a flashlight flash.

### Can my other pets help my deaf dog?

Yes, many deaf dogs take cues from a hearing companion animal in the home. A second dog can alert yours to visitors, doorbells, or your return to the room. This is not a substitute for training and safety measures, but it often makes daily life easier for everyone.

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## Related Articles

- [Dog Hair Loss on Ears: Causes and Treatment Options](/knowledge/veterinary-medicine/skin-allergy-and-ear-care/dog-hair-loss-on-ears)
- [Deaf Dog Behavior Problems](/knowledge/veterinary-medicine/behavior/deaf-dog-behavior-problems)
- [What Can I Do For Dog With Ear Infection](/knowledge/veterinary-medicine/clinical-methods/what-can-i-do-for-dog-with-ear-infection)
- [Dog Ear Infection with Hair Loss: What's Going On?](/knowledge/veterinary-medicine/skin-allergy-and-ear-care/dog-ear-infection-hair-loss)
- [Dog Hair Loss After Puppies: Causes and What to Do](/knowledge/veterinary-medicine/skin-allergy-and-ear-care/dog-hair-loss-after-puppies)
- [Dog Ear Infection with Loss of Balance: When to Worry](/knowledge/veterinary-medicine/skin-allergy-and-ear-care/dog-ear-infection-loss-of-balance)

## References

1. [Deafness in Dogs - Dog Owners](https://www.merckvetmanual.com/dog-owners/ear-disorders-of-dogs/deafness-in-dogs). Merck Veterinary Manual.
2. [Deafness in Animals - Ear Disorders](https://www.merckvetmanual.com/ear-disorders/deafness/deafness-in-animals). Merck Veterinary Manual.
3. [Sensory Decline: Real-World Tactics for Managing Vision and Hearing Loss](https://pubmed.ncbi.nlm.nih.gov/41444090/). The Veterinary clinics of North America. Small animal practice, 2026.
4. [Voxelwise analysis of the central hearing pathway in senior dogs reveals changes associated with fractional lifespan](https://pubmed.ncbi.nlm.nih.gov/39103441/). Scientific reports, 2024.
5. [Hearing loss following the use of topical otitis therapeutics in dogs](https://pubmed.ncbi.nlm.nih.gov/36067769/). Tierarztliche Praxis. Ausgabe K, Kleintiere/Heimtiere, 2022.
6. [Case Report: Recurrent vestibular episodes in a dog resembling Meniere's disease](https://pubmed.ncbi.nlm.nih.gov/42712380/). Frontiers in veterinary science, 2026.
7. [A reliable and holistic approach to evaluating hearing and cognitive auditory processing in adult and aged companion dogs](https://pubmed.ncbi.nlm.nih.gov/41667771/). Scientific reports, 2026.

## Further Reading

- [Merck Veterinary Manual: Dog Owners](https://www.merckvetmanual.com/dog-owners)
- [Cornell Richard P. Riney Canine Health Center: Canine Health Information](https://www.vet.cornell.edu/departments-centers-and-institutes/riney-canine-health-center/canine-health-information)
- [American Veterinary Medical Association: Pet Care](https://www.avma.org/resources-tools/pet-owners/petcare)