Dalmatian: congenital deafness linked to pigmentation and the right gear
Published by Planète Pets · managing editor: Clément Lacaille · how our guides are written
A Dalmatian that doesn't respond to its name or startle at noise isn't necessarily being disobedient: the breed tops the charts for congenital deafness in dogs, a trait directly linked to its signature spotted coat. Find all our gear guidance in the dog accessories section.
What the landmark study shows
Strain published a review in 2004 in The Veterinary Journal on the prevalence of congenital deafness and its links to pigmentation and sex in at-risk breeds (see the study). The Dalmatian ranks at the top of the affected breeds, with bilateral deafness in close to one dog in twelve and unilateral deafness in close to one in five, meaning nearly a third of the breed is affected on one side or the other. The mechanism identified ties this risk to the gene responsible for the breed's pigment patches: the smaller or more absent the patches around the ears, the higher the odds of deafness, a link the author also found in other extreme-coat breeds such as the Bull Terrier or the English Setter.
Adapting gear for a dog that can't hear
- A GPS collar rather than relying on a vocal recall or whistle, since a deaf dog can hear neither its name nor a sound signal if it wanders off.
- A short, fixed-length leash in unfenced areas, since the lack of hearing rules out any distance recall and makes close supervision essential.
- Visible, easy-to-spot gear, to flag the dog's deafness to other walkers and reduce the risk of a startled reaction on an unexpected encounter.
For the right leash on off-lead-style walks, our guide to the retractable or standard dog leash explains why a fixed model is preferable whenever a vocal recall can't be relied on. Find the full breed profile on the Dalmatian page and browse all our guides on the dog hub.
Frequently asked questions
Is a Dalmatian puppy born with two pigmented ears safe from deafness?
The risk is much lower but not zero; only an objective hearing test performed by a vet can confirm normal hearing on both sides.
Does a dog deaf in only one ear still need special gear?
Yes, to a lesser degree: sound localisation stays impaired even with one working ear, which justifies the same outdoor precautions.
Can the Dalmatian's congenital deafness appear later in life?
No, it's present from birth, even though it can go unnoticed in a young puppy not yet tested much on sound.
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This guide is part of Planète Pets’s Dogs universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.