Ah, dog kisses. There’s nothing quite like that slobbery, tail-wagging greeting your furry friend bestows upon you. Whether it’s a quick lick or a full-on face bath, these slobbery smooches can leave us feeling loved and appreciated.
But what’s behind all that licking? Are they really just saying, “I love you,” or is there more to it? Here’s 12 reasons about those heartwarming (and sometimes sticky) dog kisses.
1. Instinctive Beginnings
Dogs licking their humans can be traced back to their wolf ancestors. In the wild, wolves lick each other as a form of social bonding and greeting. Puppies lick their mother’s mouth to ask for food, a behavior that persists in domesticated dogs as an instinctual act.
Licking was also crucial for survival. Wild pups lick their mother’s face as she returns from hunting, encouraging her to regurgitate predigested food. Although your furry friend doesn’t expect a meal, this behavior remains rooted in their DNA.
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It’s believed that domesticated dogs continued this tradition by licking their human pack members, helping strengthen social bonds and reinforcing a pack-like hierarchy.
2. A Taste of Salt & Sweat
Your dog might find your salty skin irresistible. Our sweat contains natural salts that dogs can find appealing, and sometimes, their licking is purely sensory-driven. Dogs are attracted to our sweat glands, particularly around the hands and feet because they excrete sweat mixed with salt and other bodily chemicals that dogs find fascinating.
However, frequent licking due to sweat or salt could lead to excessive behavior, known as “obsessive licking.” In such cases, it’s best to consult your vet to rule out any underlying health issues or anxiety-related problems.
Additionally, some research suggests dogs may lick human skin to consume minerals or even gain specific scents that help them identify and remember their owners. (ref)
3. Sign of Affection
Dog kisses are often interpreted as a sign of love. Just like humans use hugs or kisses to express warmth, dogs use licking to convey their attachment. Oxytocin levels increase in both dogs and their owners when interacting positively, including through licking.
While your dog’s kisses are generally a good sign, some experts believe that dogs lick to please their owners as well, especially if their behavior is consistently rewarded with attention and love. This behavior can also stem from the socialization process, as dogs learn that licking is a way to communicate their positive feelings towards other dogs and humans.
4. Your Dog Might Be Trying to Tell You Something
Dogs use licking as a form of communication. Whether it’s a tap on the arm to alert you to a full water bowl or a gentle lick on the hand to express hunger, their kisses can sometimes convey a need or request. Licking is also a form of submissive behavior that may signal that your dog respects you as their leader or seeks reassurance.
Paying attention to patterns in your dog’s licking can help you decode what they’re trying to say. For instance, dogs may lick an injured area on your body to try to help you heal.
Some research suggests that dogs can detect hormonal changes or emotional states in their owners, potentially explaining why dogs may lick more frequently when you’re feeling stressed, sad, or anxious. (ref)
5. Grooming & Bonding Ritual
Licking is a way dogs groom themselves and their pack members, which extends to their human family. Mothers lick their puppies clean, and adult dogs may lick each other to reinforce social bonds.
This behavior is part of a mutual grooming ritual known as allogrooming, which helps build and maintain social relationships.
When your dog licks you, they might be trying to keep you “clean” as they would with another dog. This form of bonding strengthens their connection to you. It’s also a way for dogs to self-soothe and relieve stress, which can be comforting for both dogs and humans.
6. Stress Relief for Your Pup
Licking releases endorphins in dogs, which can have a calming effect. For many dogs, giving kisses can be a soothing activity, especially in stressful situations. This behavior is similar to thumb-sucking in children, providing a repetitive, rhythmic action that can help reduce anxiety.
If your pup seems to be licking obsessively, it might indicate anxiety. Providing them with mental stimulation or calming environments can help reduce this behavior. Puzzle toys, regular exercise, and desensitization training can also improve their mental health and reduce stress-induced licking.
7. Puppy Probiotics?
Dog saliva is sometimes considered to have antibacterial properties, helping to clean wounds. Historically, people even allowed dogs to lick their injuries because they believed it promoted healing.
Research has shown that certain compounds in dog saliva have wound-healing potential, such as histatins, which can accelerate tissue regeneration. (ref)
However, it’s important to note that not all bacteria found in a dog’s mouth are beneficial. Some can be harmful, especially for those with compromised immune systems.
A dog’s mouth can contain harmful bacteria like Pasteurella, Salmonella, and Campylobacter, which can lead to infections if introduced to open wounds or mucous membranes.
8. Recognizing Illnesses
Dogs have an incredible sense of smell and may detect illnesses in their owners. Studies have shown that some dogs can smell cancer, diabetes, and other health conditions in humans. For instance, research published in The British Medical Journal demonstrated that trained dogs could detect bladder cancer by smelling urine samples. (ref)
A sudden increase in licking behavior might indicate that your dog senses something unusual. Dogs trained to detect diabetic episodes can alert their owners by licking persistently when blood sugar levels drop.
If your pup keeps kissing a specific part of your body persistently, it’s worth checking in with your doctor.
9. Attention-Seeking Behavior
Sometimes, those kisses are a cry for attention. Dogs quickly learn that licking can lead to cuddles, playtime, or treats. They might use their affectionate nature to nudge you into giving them what they want. In households where licking is consistently met with positive reinforcement, dogs are more likely to continue this behavior.
If your dog licks excessively when you’re around, it might be time to incorporate more structured playtime or training sessions into your routine. Providing mental stimulation through interactive toys, training games, or exercise can help fulfill your dog’s needs without relying on constant licking for attention.
10. Different Breeds, Different Licks
Not all dogs are kissers. Some breeds, like Golden Retrievers and Labradors, are known for being particularly affectionate, while others, like Basenjis and Afghan Hounds, might be less inclined to give kisses.
However, a dog’s individual personality also plays a significant role. Some independent breeds might surprise you with their unique ways of showing love. For instance, Basenjis often show affection through leaning or nudging instead of licking.
Ultimately, understanding your dog’s unique behavior helps you appreciate their love language.
11. Health & Hygiene Concerns
While most dog kisses are harmless, it’s essential to consider hygiene. Dogs’ mouths can carry bacteria, parasites, and fungi that might pose a risk, especially if you have open cuts or weakened immunity. The Centers for Disease Control and Prevention advises against allowing dogs to lick faces or wounds to minimize the potential spread of zoonotic diseases.
To reduce risks, avoid letting dogs lick your face or any wounds. Regular vet check-ups, parasite control, and oral hygiene can help keep your pup’s kisses safe. Brushing your dog’s teeth, providing dental chews, and routine cleanings can all help maintain good oral health.
12. Training to Manage Licking
Excessive licking can become problematic, so training is crucial. Teaching commands (if you have a GSP, use German commands) like “stop” or “no” can help curb overzealous licking. Offering toys or chew treats as alternatives can redirect their attention positively. Clicker training or using positive reinforcement methods can be effective in shaping desired behavior.
Reward your dogs when they refrain from licking or following commands, reinforcing good behavior with treats, praise, and affection. Establishing boundaries and a consistent routine will help your dog understand when and where it’s appropriate to lick.
Dog kisses are a complex blend of instinct, affection, communication, and sometimes, just plain curiosity. While most kisses are harmless, maintaining good hygiene and setting boundaries can ensure those slobbery smooches stay sweet. So, dog kisses reveal just how deeply our furry friends care for us, slobber and all!
Davin is a jack-of-all-trades but has professional training and experience in various home and garden subjects. He leans on other experts when needed and edits and fact-checks all articles.