You can get a rough sense of your dog’s hearing at home using simple sound tests, but the only way to get a definitive answer is a veterinary test called a BAER (Brainstem Auditory Evoked Response). Home tests work well for spotting bilateral deafness, where both ears are affected. Single-ear hearing loss, though, is nearly impossible to detect without professional equipment.
Simple Tests You Can Do at Home
The key to every home hearing test is the same: your dog must not be able to see you, feel vibrations through the floor, or detect air movement. Dogs are remarkably good at compensating with their other senses, so false “passes” are common if you’re not careful about controlling the setup. Stand behind your dog or wait until they’re facing away, and try these approaches one at a time.
The clap test. Clap your hands sharply while your dog is turned away. A hearing dog will flinch, turn their head, or at least flick an ear. Do this at varying distances to get a sense of range.
The treat bag test. Crinkle a treat bag or food packaging out of your dog’s line of sight. Most dogs with normal hearing will perk their ears or come running. This test is useful because the sound already has a strong positive association.
The whistle test. Use a dog whistle or any high-pitched sound. Dogs hear frequencies up to about 45,000 Hz, roughly double the upper limit of human hearing, so a dog whistle produces sounds you can barely perceive but that should trigger an obvious reaction in a hearing dog.
Everyday noise test. Jingle keys, ring a doorbell, or tap on a metal bowl. A hearing dog should react consistently to these familiar sounds. Inconsistent responses, reacting sometimes but not others, can suggest partial hearing loss.
The silent approach test. Walk up behind your resting or sleeping dog without speaking. If they startle when you gently touch them, they likely didn’t hear you coming. A hearing dog will usually notice footsteps or breathing before you reach them.
Run each test multiple times over several days. A single missed reaction could mean your dog was simply focused on something else. A pattern of non-responses is what matters.
Why Home Tests Have Limits
The biggest blind spot with home testing is unilateral deafness, meaning hearing loss in just one ear. A dog with one good ear can localize sound well enough to appear completely normal. In a study of 900 Dalmatians, dogs with hearing in only one ear were routinely misidentified as normal by owners who didn’t know what to look for. These dogs relied entirely on their functioning ear and showed no obvious behavioral signs.
Home tests also can’t tell you how much hearing your dog has lost. A dog might react to a loud clap but miss softer cues like your voice from across the yard. That kind of partial loss is difficult to quantify without equipment that measures specific frequencies and volume thresholds.
The BAER Test: The Gold Standard
BAER testing is the only objective, reliable way to measure a dog’s hearing. It works by placing small electrodes on your dog’s scalp and delivering a series of clicks or tones through earphones into one ear at a time, while masking the opposite ear with white noise. The electrodes pick up electrical activity as the sound signal travels from the inner ear through the auditory nerve and into the brainstem. A normal result produces a characteristic pattern of four to six waveforms, each generated by a different structure along the hearing pathway. If those waveforms are absent in one or both ears, the dog has confirmed hearing loss in those ears.
The test is painless, doesn’t require sedation in most cases, and takes about 10 to 15 minutes. Puppies can be tested reliably starting at six weeks of age, since their hearing pathways aren’t fully developed before that point. BAER testing is available at veterinary neurology practices and many university veterinary hospitals. Costs typically range from $50 to $300 depending on location.
If you have a breed with a known genetic risk for deafness, BAER testing is especially worthwhile. Dalmatians have the highest prevalence of congenital deafness, followed by English Setters, Bull Terriers, Australian Cattle Dogs, Catahoula Leopard Dogs, Jack Russell Terriers, and Whippets. Responsible breeders of these breeds often BAER-test entire litters before placing puppies.
Behavioral Signs That Suggest Hearing Loss
Sometimes you’re not actively testing. You just notice something is off. The most common sign is a failure to respond to sounds that used to get a reaction: the doorbell, your voice calling them in from the yard, or a loud noise that doesn’t wake them from sleep. Dogs that have gradually lost their hearing, as often happens with age, may seem increasingly unresponsive to their surroundings. They may ignore commands they once followed reliably.
Other patterns to watch for include excessive barking (they can’t hear themselves and lose volume control), a change in the quality of their bark, hyperactivity or confusion when given verbal commands, and a noticeable lack of ear movement in response to sounds. Some dogs compensate so well through visual cues and routine that owners don’t realize there’s a problem until the loss is significant.
What Causes Hearing Loss in Dogs
Congenital deafness, present from birth, is strongly linked to pigmentation genetics. Dogs with white or merle coats are at higher risk because the same genes that suppress pigment can also affect the development of sensory cells in the inner ear. This is why the high-risk breed list skews toward dogs with significant white markings.
Acquired hearing loss has several causes. Age-related decline is the most common, typically becoming noticeable in senior dogs. Chronic ear infections can damage structures in the middle and inner ear over time. Certain medications are known to be toxic to hearing, particularly some antibiotics in the aminoglycoside family (like gentamicin), certain cancer drugs, and loop diuretics. If your dog is on long-term medication and you notice hearing changes, that’s worth bringing up with your vet.
Living With a Deaf or Hard-of-Hearing Dog
If testing confirms hearing loss, the adjustment is real but very manageable. Dogs are visual communicators by nature, so switching from verbal commands to hand signals is often smoother than owners expect. Common hand signals include a palm raised upward for “sit,” a flat palm facing the dog for “stay,” and an arm pulled inward toward your body for “come.” A thumbs-up works well as a general “good job” marker.
A vibration collar (not a shock collar) is one of the most useful tools for getting a deaf dog’s attention at a distance. The gentle vibration serves the same role as calling their name. You pair it with a treat: the dog feels the vibration, turns to look at you, and gets rewarded. Over time this builds a reliable way to communicate across a room or a yard. A long training leash is helpful in the early stages, especially for practicing recall in open spaces before the vibration association is solid.
One practical safety measure: put a tag on your dog’s collar that reads “I am deaf.” If your dog ever gets loose, this tells anyone who finds them not to rely on calling or clapping to get a response. It’s a small detail that can make a real difference.