Why is my dog sticking out his tongue?

Updated 04/10/2024

Our goofy and lovable pups are often up to all sorts of adorable behaviors, one of which is sticking out their tongue. Wondering “why is my dog sticking out his tongue?” If you’ve noticed your furball regularly showing off their tongue, you might be questioning if it's normal or something to worry about. Let’s unpack some of the reasons behind your dog’s tongue antics to help make sure your four-legged companion is happy and healthy.

Why is my dog sticking his tongue out? Common reasons

So, why do dogs stick their tongues out? Dogs stick out their tongues for a whole bunch of reasons, such as for cooling down or when they’re relaxed, and most of the time it’s nothing serious. Let’s explore what a dog tongue out means in this list of common reasons, and if there’s anything you might need to do about it:

Happiness

Wondering, “why does my dog stick her tongue out when I pet her?” Good news! It probably means they’re happy to see you. You can tell your dog is happy when they wag their tail, and have relaxed body language and soft ears. They might even shower you with big slobbery dog kisses by licking your hands, your face, or anywhere else as a sign of loooove.

Relaxation

Sometimes, dogs will let their tongue hang out when they’re super relaxed or snoozing. If your dog sleeps with their tongue out it’s usually nothing to worry about. Just like some of us sleep with our mouths open, dogs might let their tongue flop out as they rest comfortably (and maybe even snore!). 

Cooling down

Wondering, “why is my dog sticking his tongue out and panting?” It could be a sign that your dog is too hot! Dogs don’t sweat the same way humans do, instead, panting with their tongue sticking out is a way they regulate their body temperature. This is especially common after exercise or on a hot day. 

If you see your dog panting and sticking their tongue out, make sure to give them plenty of water and keep your dog cool by providing a nice shady spot. If it keeps happening, you might want to purchase a dog water bottle for when you’re on the go, or a dog cooling mat.

Genetic traits

Certain breeds are more prone to sticking their tongues out. Brachycephalic dogs (breeds with short snouts), such as Bulldogs, Pugs, and Shih Tzus, often have tongues that don’t fully fit in their mouths. This can cause their tongue to hang out and they may pant frequently as their tongue further obstructs their breathing. If you’ve a dog with a short snout it’s best to see a vet about coping methods or treatments for your dog.

Stress and anxiety

If you find your dog sticking their tongue out and shaking, or you’re wondering “why is my dog sticking his tongue in and out”, it might be a sign of stress and anxiety. Dogs sometimes stick out their tongue or lick their lips to cope when they’re feeling stressed, along with other signs of nervousness, such as pacing, whining, or trembling. 

There are many reasons your dog could be experiencing anxiety, so it’s important to figure out the root cause and remove them from the situation if possible. Sticking to a routine, petting and cuddling them, and playing with their favorite toy can help. You might also want to try a dog anxiety vest or dog-calming pheromones if your pup’s anxiety happens on the regular. Needless to say, if your dog appears to be in pain or any significant distress, be sure to contact your vet as soon as possible for advice. 

Tasting the air

Dogs love to explore the world through their senses, including taste. By sticking their tongue out and licking the air, our clever pups gather information about their surroundings. So if you see your curious canine licking the air after eating their favorite treat, they’re probably savoring the taste. This behavior, known as the Flehmen response, helps them pick up on scents and pheromones that regular sniffing can’t detect.

Health-related reasons dogs stick out their tongue

Unfortunately, there could be more serious causes for your dog’s sticking out tongue. It’s important to keep an eye on your dog’s body language and dog's behavior for signs of health issues so your dog can receive the right care. Let’s explore these below and remember, if you’re ever worried about your dog, don’t hesitate to check in with your vet:

Dental issues

Dental problems, such as loose teeth, gum disease, or tooth abscesses, can make it uncomfortable for your dog to keep their tongue inside their mouth. Regular dental check-ups and dog dental care can help prevent these issues.

Oral tumors

Tumors in the mouth can interfere with your dog’s ability to keep their tongue in place. If you notice any growths in or around your dog’s mouth or if they’re experiencing worrying symptoms such as weight loss, pain, or bleeding, it’s important to seek help from a vet right away.

Inflammation

Inflammation in the mouth (from injury, infection, etc.) can cause discomfort that may cause your dog to stick out their tongue. If you notice swelling, redness, or other signs of inflammation, make sure to take your poor pup to the vet as soon as possible. Any sort of condition causing pain could cause your dog to hold their tongue out of their mouth.

Hanging tongue syndrome

Some dogs suffer from hanging tongue syndrome, where their tongue permanently hangs out of their mouth. This can happen due to congenital defects, injury, or neurological issues and can lead to dryness and cracking of the tongue if not properly managed. If your dog is diagnosed with this, it’s important to chat with your vet about coping methods.

Neurological issues

Neurological problems can affect the muscles and nerves that control the tongue, leading to it sticking out. Conditions such as nerve damage, brain injuries, or degenerative diseases often require thorough veterinary assessment and intervention. Let your vet know if you’re worried this may be the cause of your dog’s sticking out tongue.

When to be concerned about your dog sticking out their tongue

If you notice your dog frequently sticking out their tongue, keep an eye on their behavior and appearance. Noticing changes early can help you address potential problems before they develop.

Signs of trouble

While most reasons your dog may be sticking out their tongue are harmless, if your dog’s tongue appears dry, cracked, or discolored, or if they show signs of pain, drooling excessively, or have difficulty eating, it’s time to seek veterinary advice.

Veterinary check-ups

Regular vet check-ups are important in diagnosing and treating health issues early on. If you’re ever in doubt about your dog’s tongue-sticking-out behavior or overall health, don’t hesitate to consult your vet. They can provide a thorough examination and recommend any necessary treatments or interventions.

Meet our veterinary expert, Emma

This article has been checked by veterinarian Emma Chandley, BVetMed MRCVS PGCertSAS. Emma graduated from the Royal Vet College in London in 2011. She has a keen interest in surgery and went on to do a postgraduate certificate in small animal surgery and was then awarded advanced practitioner status in the same discipline.

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