why do dogs lick you

Unraveling Canine Affection: Why Do Dogs Lick You?

Have you ever wondered, “Why do dogs lick you?” Our loyal canine companions exhibit various behaviors, but their tendency to offer what seems like kisses has always intrigued many. Let’s delve into the reasons behind this endearing, yet sometimes puzzling, gesture.

Historical and Evolutionary Perspective


Dogs and humans have shared a bond for thousands of years, a relationship rooted deeply in coexistence and mutual benefit. This bond has evolved over time, shaped by hunting partnerships, protection, companionship, and more. To truly understand certain behaviors of our domesticated dogs, it’s crucial to peer into their ancestral past and the wild creatures from which they descended: wolves.

In the intricate dynamics of wolf packs, a range of behaviors serve critical communication functions. One such behavior is licking, especially around the face and mouth region. Young wolves would lick the muzzles of adult wolves, a gesture that, among other things, prompted the regurgitation of food. This not only provided sustenance for the younger members but also solidified the pack’s bond.

Moreover, this face-licking served a secondary purpose: submission. In the hierarchical structure of wolf packs, it’s crucial for members to recognize and accept their position. Licking, in this context, became a non-verbal cue of acknowledging a superior’s higher rank. This submissive gesture is integral to maintaining peace within the pack, as it reinforces the social structure without the need for aggressive confrontations.

Now, when we consider the domestic dog, this evolutionary behavior manifests in their interactions with humans. While dogs have been bred for various purposes and have moved away from the wild pack structures, many of their instinctual behaviors persist.

The act of licking us, especially our faces, might be an echo from their wolf ancestors — a combination of seeking attention, food, showing affection, or even signaling submission.

As time progressed, with dogs getting closer to human settlements, they transitioned from wild hunters to scavengers and, eventually, loyal companions. Through this journey, certain behaviors got reinforced. For example, a dog that licked might have been perceived as more affectionate or submissive, leading them to be more readily accepted or favored by early humans.

In conclusion, the behavior of dogs licking humans is a tapestry woven from threads of ancient instincts, evolutionary pressures, and the unique history shared between dogs and humans. By understanding this rich background, we gain a deeper appreciation for every lick, nuzzle, and affectionate gesture from our beloved canine companions.

Why Do Dogs Lick You? 8 Reasons


Dogs, our faithful companions, often display behaviors that intrigue, delight, or sometimes even baffle us. One such behavior is their tendency to lick us.

Whether it’s a gentle lick on the hand or an enthusiastic face wash, this act carries multiple meanings rooted in evolution, biology, and individual temperament. Let’s delve into the primary reasons behind the age-old question: Why do dogs lick you?

1. Communication and Submission

Licking is deeply rooted in the canine lexicon of communication. From the tender first moments of life, puppies experience the world through their mother’s nurturing licks. This early interaction teaches them the value of touch and connection. As puppies grow and interact with their littermates and other dogs, they continue to employ licking as a vital communicative tool.

In the wild, lower-ranking wolves would often lick the mouths of higher-ranking ones, signaling submission and acknowledging the pack hierarchy. When domestic dogs lick humans, they might be tapping into this ancestral behavior, signaling deference or seeking permission.

Furthermore, a dog’s enthusiastic licks upon your return home could be their unique way of saying, “I missed you” or “I’m glad you’re back!”

2. Affection and Bonding

For dogs, licking isn’t merely a physical action; it’s an emotional expression. In many ways, it’s their version of sending a heartfelt note or giving a warm hug. The act of licking releases endorphins in dogs, the body’s natural ‘feel-good’ hormones, which promotes feelings of pleasure and contentment. This not only makes them feel better but also strengthens their bond with the person they’re licking.

Moreover, our reactions to their licks — whether we laugh, give them attention, or reciprocate with affection — further reinforces their behavior. For a dog, every lick can be a reaffirmation of the special bond they share with their human, a tangible display of their loyalty and love.

3. Exploration and Taste

Imagine navigating the world primarily through your sense of taste and touch — that’s the reality for our canine companions. Dogs possess up to 300 million olfactory receptors in their noses, compared to about 6 million in humans. But it’s not just about sniffing; their sense of taste is closely linked to their olfactory system, allowing them to “taste-smell” their surroundings.

The human skin, with its natural salts, oils, and the myriad of scents we carry — like lotions, soaps, or even the remnants of our last meal — presents an intriguing sensory landscape for dogs to explore. Every lick offers them information about our health, emotions, and whereabouts.

4. Grooming and Cleaning

In the animal kingdom, grooming is a behavior that goes beyond personal hygiene — it’s a social ritual. Animals groom each other to reinforce social bonds, establish hierarchy, and offer care. When your dog tries to “groom” you by licking, it’s an intimate act of care, suggesting that they view you as part of their family or pack.

Furthermore, dogs have antibacterial compounds in their saliva. While it’s not advisable to let a dog tend to an open wound, their instinctual behavior to lick and clean an injury comes from a protective place. They are trying to keep their loved ones — whether fellow canines or humans — clean and safe.

5. Seeking Attention and Reinforcement

Dogs, like humans, crave attention and companionship. Their behaviors are often shaped by the reactions they receive from those around them. A dog that has learned that licking leads to positive reinforcement — be it in the form of affection, verbal praise, or even a treat — will naturally employ this tactic more frequently.

This association forms a feedback loop: they lick, we respond, and they internalize that response. Over time, this behavior becomes an effective, learned strategy for getting attention or signaling a desire, such as wanting to play or go for a walk.

6. Medical and Behavioral Reasons

Just as humans exhibit certain behaviors when we’re uncomfortable or in distress, dogs too have their ways of signaling that something might be amiss. Constant, excessive licking, particularly of a specific area on their body or even on objects around them, could indicate an underlying health issue. It might be a skin allergy causing itchiness, a wound, or even joint pain.

Additionally, behavioral conditions such as anxiety, boredom, or compulsive disorders can manifest in repeated licking. It’s their way of self-soothing or coping with something they can’t verbally communicate. Always consult with a veterinarian if you notice an abnormal shift in your dog’s licking patterns.

7. Social Learning

Dogs are astute observers, often learning by watching and mimicking others. During their formative puppy months, they are like sponges, absorbing behaviors from their mothers, littermates, other animals, and even humans around them.

If a puppy witnesses its mother or other dogs receiving positive reactions from humans after licking them, it might internalize licking as a favorable behavior. Similarly, in households with multiple dogs, a younger dog might pick up habits, including licking, from an older dog, seeing it as an accepted or rewarding form of interaction.

8. Comfort and Soothing

Licking can serve as a therapeutic action for many dogs. The repetitive motion and sensation can help them manage feelings of anxiety, unease, or overexcitement. Think of it as akin to a human biting their nails, twirling their hair, or using a stress ball. The act of licking releases endorphins, which are chemicals in the brain that promote feelings of pleasure and reduce pain.

For a dog, this could mean that licking, whether it’s their own paws, a toy, or their favorite human, provides a sense of comfort and grounding in overwhelming situations.


From showing affection and bonding to grooming and even self-soothing, the reasons behind “Why do dogs lick you?” are multifaceted. By understanding these motives, dog owners can better appreciate these canine “kisses” and nurture a deeper bond with their furry friends.

AboutCorinne Switzer

Corinne is an avid reader and takes a keen interest in conspiracy theories. When not busy with her day job, she likes to indulge the writer in her and pens columns on a wide range of topics that cover everything from entertainment, healthy living to healthcare and more.