Pet Behaviorist Explains 10 Reasons Why Dogs Lick Their Owners

Sep 23, 2025byEmily Dawson

That warm, wet sensation of your dog’s tongue against your skin is one of the most common canine behaviors pet owners experience. Whether it’s a quick lick on your hand or an enthusiastic face washing session, our furry friends seem determined to shower us with these slobbery gestures. But have you ever wondered what your dog is really trying to tell you with all that licking?

While this article provides general information about canine behavior, every dog is unique. If your dog shows excessive licking or other concerning behaviors, please consult with a veterinarian or certified animal behaviorist for personalized advice.

1. Showing Affection

Showing Affection
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Dogs naturally express love through physical contact. Licking releases endorphins in your pup’s brain, creating a pleasurable sensation that reinforces their bond with you.

Mother dogs lick their puppies from birth, establishing this behavior as a fundamental expression of care. When your adult dog licks you, they’re essentially saying, “I love you” in their language.

2. Seeking Attention

Seeking Attention
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Smart pups quickly learn which behaviors get your attention. A slobbery kiss often results in pets, play, or even treats from delighted humans.

Your reaction reinforces this behavior, creating a communication pattern. Even negative reactions like pushing them away provide attention, so your dog continues the licking strategy that always seems to work.

3. Tasting Salt On Your Skin

Tasting Salt On Your Skin
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Your skin naturally contains salt from sweat and oils that dogs find irresistible. Their powerful taste receptors can detect even the slightest salty residue, making you a walking salt lick.

After exercise, you’ll likely notice increased licking because your sweat creates a more pronounced salty flavor. This natural attraction explains why many dogs target exposed areas like hands and faces.

4. Gathering Information

Gathering Information
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A dog’s tongue works like a sensory tool, collecting data about their environment. Their taste buds and scent receptors work together, analyzing molecules your skin picks up throughout the day.

When your dog licks you, they’re essentially reading your “story” – where you’ve been, what you’ve touched, and even your emotional state. It’s their version of asking, “How was your day?”

5. Showing Submission

Showing Submission
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Wild canines lick the mouths of pack leaders as a sign of respect. Your family pet maintains this instinctual behavior, acknowledging you as their leader through gentle licks.

Puppies lick adult dogs’ mouths to stimulate food regurgitation. Though domesticated dogs no longer need this feeding method, the submissive gesture remains hardwired in their communication system.

6. Reducing Anxiety

Reducing Anxiety
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Licking releases endorphins in a dog’s brain, creating a calming effect during stressful situations. Many dogs lick their owners when feeling nervous or uncertain.

Notice if licking increases during thunderstorms, visits to the vet, or when strangers enter your home. Your familiar scent combined with the soothing action helps your dog self-regulate their emotions.

7. Grooming Behavior

Grooming Behavior
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Dogs consider you part of their pack, extending their natural grooming instincts to include you. Mother dogs spend hours licking their puppies clean, and this behavior continues into adulthood.

When your dog licks you, they’re performing an act of care. It’s particularly common in breeds with strong pack mentalities who maintain tight social bonds through mutual grooming.

8. Enjoying Your Taste

Enjoying Your Taste
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Beyond salt, dogs appreciate the unique flavor profile each human possesses. Your personal scent, skin oils, and even food particles create a taste experience dogs find fascinating.

Food-related scents particularly attract licking. If you’ve recently handled food or have lotion on your skin, expect increased attention from your dog’s tongue as they investigate these enticing flavors.

9. Healing Instinct

Healing Instinct
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Dogs instinctively lick their wounds to clean and heal them. This behavior extends to their humans when they perceive injury or illness.

Their saliva contains mild antibacterial properties, though not strong enough for human wounds. When your dog targets a specific area repeatedly, they might be detecting subtle changes in your body chemistry or temperature that signal potential health issues.

10. Learned Behavior

Learned Behavior
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Dogs repeat actions that earn positive responses. If your reaction to licking includes laughter, petting, or verbal encouragement, you’ve trained your dog to continue.

Many owners inadvertently reward licking through attention or treats. Even pushing your dog away provides engagement that reinforces the behavior. Consistent responses help shape whether your dog becomes an occasional or enthusiastic licker.

Emily Dawson
byEmily Dawson

Toronto-based freelance writer and lifelong cat lover. Emily covers pet care, animal behavior, and heartwarming rescue stories. She has adopted three shelter cats and actively supports local animal charities.