No, it's generally not considered sanitary to let your dog lick your face because their mouths contain bacteria and germs that can transmit zoonotic diseases like Salmonella, E. coli, and Capnocytophaga, posing risks, especially to immunocompromised individuals, though the risk of serious illness from a single lick is low for healthy people; it's best to avoid face licks and practice good hygiene.
While healthy adults will almost certainly survive being exposed to the viruses or bacteria in their dogs' mouths, there is a non-zero risk of gastrointestinal illness and oral diseases from puppy kisses. Certain parasites like giardia, roundworms, and hookworms can also be transmitted through licks.
For healthy adults, the risk of illness after being licked by a pet that receives regular veterinary care is negligible. But when dogs and cats lick people with weak immune systems, serious infections can follow.
Although you still probably won't get sick if your dog bathes your face in saliva, avoiding this is the simplest way to prevent infections. Licking, whether it occurs on the hand, face or another part of the body, should be avoided if you have a risk factor for capnocytophaga infections.
If you love dog kisses, you can take precautions to minimize the risks. Wash your face after receiving dog licks, avoid letting dogs lick near your mouth or any open wounds, and ensure your pet has good oral hygiene to reduce bacterial buildup.
Capnocytophaga bacteria are commonly found in the mouths of dogs and cats. Capnocytophaga germs can make people sick if they're bitten or the dog or cat's saliva (spit) gets into an open wound or sore. Most people who have contact with a dog or cat do not become sick.
Leaning into you
Leaning against your leg (or whatever part is closest to them) is a big sign that they love you. If you find your dog leaning against you, take a moment to pet him and show him some extra affection.
It's a common myth that your dog's saliva has highly antibacterial properties so their licking can be good for their wounds. Actually, saliva is only mildly bacterial, and can also be a source of disease-producing bugs. The trauma caused by licking is also likely to make wounds worse.
Like bacteria, the major route of infection to humans is fecal-oral. Pets that have licked their anus can potentially pass the parasite eggs to humans during facial licking. With the exception of two single celled parasites, Giardia and Cryptosporidia, this type of infection is not likely.
Licking faces can be an appeasement gesture
Appeasement gestures are generally a dog's way of saying: ''I come in peace. I mean you no harm''. Face-licking may then mean that they're just showing their friendliness to others. Even strangers.
Dogs say "sorry" through submissive body language like tucking their tail, lowering their head, making "puppy eyes," licking, and rolling onto their backs to show they're not a threat, which are appeasement signals to diffuse tension after a conflict or misbehavior, often combined with whining or approaching and retreating. They recognize when their human (or another dog) is upset and use these signs to seek forgiveness, though it's more about reducing stress than human-like guilt.
By now you know that dogs lick people's crotches or smell crotches for a variety of reasons. Our genitals, like our feet, armpits, mouths, etc. hold the most scents, bacteria, and pheromones.
Capnocytophaga canimorsus is a gram-negative bacterium found in the oral cavity of up to 74% of dogs and 57% of cats [1]. While it is a commensal bacterium that is part of the normal oral flora of these animals, in rare cases, it can cause illness in humans.
Always wash your hands thoroughly with soap and water after being licked. Avoid letting your dog lick any open wounds or near your face and mouth. Be aware of your dog's health and any signs of illness that could increase the risk of zoonosis.
You can get hookworms and other parasites from dog saliva.
Most intestinal parasites are transmitted through a fecal-to-oral route and more easily if you have a wound in your mouth. These parasites include Giardia, hookworms, and roundworms.
Don't say anything or make eye contact, but remain neutral. If this doesn't work, try moving away from your dog, or leave the room entirely. Over time this should give them the message that it's not something you enjoy. Try giving them something else to do that stops them licking, such as a chew toy or a food puzzle.
If you choose to let your dog kiss you, it's a good idea to wash your face and hands afterward so that potentially irritating bacteria don't linger. In lieu of kisses, consider showing love in other ways, like scratches behind the ears, belly rubs, or playtime with a favorite toy.
Kaplan, of Cornell University's College of Veterinary Medicine, told the Times that pet owners shouldn't let their dog kiss a person's mouth, nose, and eyes, through which certain pathogens, including salmonella and E. coli, can be transmitted.
While kissing your dog can feel loving, keep in mind that germs can be passed through saliva, especially when kissing dogs on the mouth. If you're immunocompromised or concerned about hygiene, it may be best to avoid kissing a dog on the lips.
Bacterial Infections
Unfortunately, Capnocytophaga Canimorsus, a bacterium present in dog saliva, can also lead to a severe bacterial infection in humans. The severity of the bite and its location, along with the individual's overall health, determine the extent of the injury.
Capnocytophaga canimorsus is a bacterium transmitted through the saliva of dogs. An infection can cause severe sepsis with acral necrosis and is potentially fatal. Here, we report the case of a 41‐year‐old man who was infected through a wound that was licked by his dog.
But some types of bacteria, viruses, parasites, and fungi that pets can carry can make people sick though a bite or scratch, or if someone has contact with an animal's waste, saliva, or dander.
The 3-3-3 rule for dogs is a guideline for the adjustment period after adoption, outlining three phases: 3 Days (decompression, feeling overwhelmed/scared), 3 Weeks (starting to settle in, learning routine, personality emerges), and 3 Months (feeling secure, bonded, and truly at home). It helps new owners manage expectations and be patient as their rescue dog transitions, emphasizing calm energy, routine, and space in the early days to build trust.
An hour for a dog feels much longer than an hour for a human because dogs perceive time more slowly due to their faster metabolism and heightened awareness of routines, so a 10-minute wait can feel like 70 minutes to them, and your hour-long absence feels like an eternity, though they don't grasp clock time but rather the intervals between events like meals, walks, and your return.
For dogs, pawing is a natural behaviour, often used to attract attention or invite play. As they grow, dogs quickly learn that repeating actions that get a response will work again. A paw on your arm may lead to you fussing them, playing with them, or even just giving eye contact and speaking.