There’s no doubt dogs are affectionate creatures. And they have numerous ways of showing it. So what’s the deal when your furry friend comes up and gives you a big ol’ pooch smooch? Let’s take a tongue-in-cheek look into why.

Dogs are oral creatures and gather a lot of information about their surroundings through taste and smell. Maybe you’re salty after a sweaty run. Maybe you’ve got barbecue sauce on your face. “Dogs can smell a lot better than we can,” says Opens a new windowDr. Jo Gale, BVetMed CertLAS MRCVS, Senior Manager, Global Science Advocacy at Waltham Petcare Science Institute, “so they find a lot more things interesting to lick than we can.” This despite the fact dogs only have about 1,700 taste buds compared to around 9,000 in humans.
In a poll* of dog owners, IAMS™ found a large majority (75%) believe dogs lick people to offer friendliness. That’s definitely a correct assumption. Licking has been a social behavior among dogs since the days of great-great-great granddaddy wolf. 'It’s a standard canine greeting to lick others around the face,” agrees Opens a new windowJames Serpell, B.S., Ph.D., Professor of Humane Ethics & Animal Welfare at the University of Pennsylvania School of Veterinary Medicine. “Junior members of the pack will run around and lick the mouths of more senior members.” Your dog considers you part of their pack, so it’s their way of greeting and welcoming you. Or maybe you still have that barbecue sauce on your face.
In ancient Greece, dogs at the shrine of Asclepius were trained to lick patients. In the Middle Ages, Saint Roch was said to have been cured of a plague of sores through his dog’s licks. The French even have a saying, “langue de chien, langue de médecin,” which translates to, “a dog’s tongue, a doctor’s tongue.”

Don’t cancel your health insurance just yet. While dogs’ saliva does have some possible bactericidal properties against some types of bacteria, it can put you at the risk of exposure to others. Too much licking can also reopen the wound and cause further infection. With modern medicine, you’re much better off hitting the first-aid kit.
And that myth about dogs’ mouths being cleaner than humans’? Not true — both contain over 600 types of bacteria. You’re welcome for that image.
While an occasional canine kiss is “aww”-inducing, some dogs can overdo it to the point of annoyance. When this happens, the best thing to do is “completely ignore it and give no attention,” suggests Dr. Jo Gale. “When they stop, provide them with attention.” Over time your dog will learn to scale back on the smooches.
*Surveyed U.S. dog owners, age 18+
Sample Size: n=201
Fielded May 8-10, 2020
Dogs use a range of sounds to communicate with us and each other. Just as important is the body language they use to tell us how they feel or what they need. How well do you know your pooch’s unspoken cues? Read on to find out.
Dogs often stare at their owners because they love them. They want to make sure you’re okay or find clues for what you’ll do next — like making sure you’re not going for a car ride without them.
We love it when dogs do this, too, which has led to this trait being even more prominent.
Opens a new windowDr. James Serpell, BSc, PhD, Professor of Humane Ethics & Animal Welfare at University of Pennsylvania School of Veterinary Medicine, explains: “We've selected dogs for this behavior. Humans love that dogs look up at them in admiration, intense loyalty. One frequent observation researchers have made is that people who handle wild dogs ... they don't look their handlers in the eye like domesticated dogs do.”
Dogs have great hearing. High-frequency sounds that humans can’t hear are especially interesting to them. Head-tilting helps them track down the source. Owners find these head tilts super cute and often reward this behavior, which, of course, makes them do it more.
Dogs yawn when they’re tired, but it’s also a possible sign they’re stressed, impatient or frustrated — like when they’re in the vet’s office, or when you won’t throw that ball you’re holding already!
In a recent IAMS poll,* 90% of dog owners said their pet sits or lays on their feet and 100% of dogs said they love their owners. Dogs are very social creatures and this is a way for them to connect and be close to you. Plus, it keeps your feet warm.
Often called “raised hackles,” dogs do this when they’re nervous, threatened or showing aggression. It’s an adaptation from their wild days of attempting to make themselves look bigger.
Opens a new window Dr. Tammie King, Applied Behavior Technical Leader at Waltham Petcare Science Institute, offered this insight to keep in mind: “What’s important when talking about a dog’s body language is to not take one thing in isolation. You’re at risk of misinterpreting what the dog is trying to say to you. Context is everything.”
So be sure to pay attention to what your dog isn’t saying to keep them healthy and happy. Serving them
Opens a new windowIAMS dog food every day will certainly help.
*Surveyed U.S. dog owners, age 18+
Sample Size: n=201
Fielded May 8 to May 10, 2020


