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Why do dogs lick you?

white-and-brown-dog-licking-hand advice
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What does it mean when a dog licks you? It can mean different things. They might be happy to see you. They might like your taste! Or they might want to know how your feeling!

By Ashley Murphy

Why do dogs lick?

Licking is part of "doggy" culture. It keeps them clean and healthy - dogs saliva contains agents that can kill germs and heal wounds. Mothers will often lick their puppies genitals to stimulate urination and defecation. New mothers will then clean their genital areas. This eliminates any lingering scent that could attract predators.

It's also a way of saying “I'm hungry”. Puppies lick their mother lips in the hope that they'll get some food.

Licking has important social functions, especially in wild dog packs. Licking is a form of respect. It's a way for a lower status dog to acknowledge a higher status dogs position. Dogs also use licking to say sorry. If a dog has upset the pack leader, they will often start licking the dominant dog's nose or lips.

What does it mean when a dog licks you?

For a dog, licking is another form of communication. It can often be a sign of affection. In words, your dog is saying: “I like you. Let’s be friends!” It also cements the bond between you and your dog. When a dog licks someone they like, their brains release feel-good chemicals called endorphins. That person then becomes associated with a positive emotion, and vice versa.

They might also be trying to tell you something. Dogs have a few different ways of “talking” to their humans. They can use body language, or bark, or whine, or even give us a little lick.

Sometimes they just like the way we taste! We might have tiny bits of food on our skin. Other dogs just love our salty flavour!

Why do dogs lick you?

If a dog starts licking you, they might be trying to find out you feel. Human sweet contains certain hormones that can reveal our emotional state. If we're scared or nervous, our sweet will contain pheromones that are not normally present. A dog can’t taste them, but they can sense them with something called the vomeronasal organ. Also known as Jacobson's organ, it's located on the upper part of the mouth and contains ducts that connect to the nose. The Jacobson organ is specially designed to "read" smells depending on what pheromones they contain. Pheremones relay all kinds of information to a dogs brain. When a dog sniffs another scent, the Jacobson organ tells them a lot about the dog who left it, including gender and age.  It's sometimes referred to as “a second nose.”

Why does my dog keep licking me? And is it unhygienic?

You should always wash your hands after a dog has licked them, and many experts recommend against letting a dog lick your face.

Firstly, you don't know where their mouth has been. Dogs have a very "unique" way of cleaning their delicate parts. Do you really want that tongue on your face? Or even on your lips?

Most of the bacteria in your dog's mouth is pretty harmless. However, they can pick up nasty strains from sniffing animal waste or drinking contaminated water. They could catch salmonella, pasteurella, and leptospira. These can all be passed onto humans, and all of them can be very unpleasant.

Parasites are another risk. If your dog licks your face, they could transmit things like ringworm. Parasites are treatable, but it's best to avoid them completely.

Excessive licking

If your dog is licking everything in sight, including you, then there might be a problem. They may be suffering from stress or anxiety. If that's the case, you'll notice other symptoms include pacing, shedding, and disruptive behaviour. Stress can manifest itself in many strange ways, so keep an eye out for any unusual changes in your dog's behaviour. Stress is often related to a dogs environment, but speak to a vet for more advice

Summary

In the majority of cases, licking is completely harmless. In fact, it's normally a good sign! It means that your dog likes you, and it's a really effective way of building up the natural bond between humans and their canine friends. However, as much as we love them, our dogs can still be a bit gross sometimes. Dogs lick each other poops. They lick their own bums. They sometimes lick other dogs bums. And then they could lick you! So always remember to wash your hands, and its best to avoid any doggy kisses on the lips!

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