Dogs lick other dogs’ ears primarily as a social bonding gesture, similar to how primates groom each other. It’s a normal part of canine communication that signals trust, affection, and sometimes submission. While it’s usually harmless, excessive ear licking can introduce moisture and bacteria that lead to infections in the dog on the receiving end.
Greeting and Social Bonding
Dogs are pack animals, and licking is one of their most basic social tools. When one dog licks another’s ears, it’s often a greeting, much like a handshake or a hug between humans. This behavior reaffirms social bonds and communicates familiarity. You’ll see it most often between dogs that already have an established relationship: housemates, siblings, or dogs that see each other regularly at the park.
Ear licking specifically carries a layer of intimacy because ears are hard for a dog to groom on its own. By licking a spot the other dog can’t reach, the licker is essentially saying, “You’re part of my group, and I’ll take care of you.” Dogs that are close companions often settle into mutual grooming sessions where one licks the other’s ears, face, or neck. It strengthens their bond and creates a sense of security for both animals.
Submission and Respect
Dogs maintain a social hierarchy, and licking plays a role in communicating where each dog stands. A more submissive dog will often lick a dominant dog’s ears, muzzle, or face as a way to signal respect and avoid conflict. This falls into a broader category of appeasement behaviors that dogs use to show they’re non-threatening. Other signals in the same family include soft tail wagging, looking away, rolling over to expose the belly, and raising a front paw.
If you notice one of your dogs consistently licking the other’s ears (but not the reverse), that’s likely a reflection of their social dynamic rather than a sign of a problem. The licker is acknowledging the other dog’s higher status in the household.
The Taste Factor
This one is less charming but entirely real: some dogs genuinely enjoy the taste of earwax. Dog ears produce a slightly salty, waxy secretion that many dogs find appealing. It’s the canine equivalent of a salty snack, and some dogs will seek it out enthusiastically.
A sudden spike in interest is worth paying attention to, though. If a dog that normally ignores another dog’s ears suddenly can’t stop licking them, it could mean the other dog has developed an ear infection. Infected ears produce discharge with a distinct smell and taste that’s especially attractive to a dog’s powerful sense of smell. In that case, the licker is actually doing you a favor by flagging a problem you might not have noticed yet.
When Ear Licking Becomes a Problem
Occasional ear licking is perfectly normal and harmless. The concern starts when it becomes frequent or obsessive, because all that saliva introduces moisture into the ear canal. A warm, moist ear canal is the ideal environment for bacteria and yeast to multiply. The organisms most commonly involved in canine ear infections are Staphylococcus bacteria and Malassezia yeast, both of which thrive when the ear canal’s natural balance of humidity and pH gets disrupted.
Over time, chronic moisture and inflammation can cause the tissue inside the ear canal to thicken and produce even more wax, creating a cycle that’s difficult to break without treatment. Watch the dog whose ears are being licked for these signs of infection:
- Redness or swelling inside the ear canal or on the ear flap
- Head shaking or tilting, scratching at the ear, or rubbing the ear against furniture
- Unusual discharge that may be dark brown, slimy, or pus-like
- Strong odor coming from the ear
- Crusting or scabs around the ear opening
Any combination of these warrants a veterinary visit. Ear infections that go untreated can become chronic and progressively harder to resolve.
How to Manage Excessive Licking
If the licking is occasional and both dogs seem comfortable, there’s no reason to intervene. It’s a healthy part of their relationship. But if it’s becoming compulsive, or if the receiving dog is showing signs of irritation or early infection, a few practical strategies can help.
Distraction works well for most dogs. Offer an interactive toy or a long-lasting chew when you notice the licking starting. Increasing exercise and mental stimulation throughout the day also helps, since a tired dog is far less likely to fixate on repetitive behaviors. If licking tends to happen during rest time, try giving the dogs separate spaces to relax in. Some dogs lick as a way to bond, so redirecting that energy into brushing sessions, play, or physical affection from you can satisfy the same social need without the wet ears.
If none of these approaches make a dent and the behavior looks truly compulsive (the dog seems unable to stop, or does it for long stretches regardless of context), that pattern may point to an anxiety or behavioral issue that needs professional support.