It’s vital to understand around the various body postures your reptile might present and what they could intend.

You are watching: Why is my bearded dragon opening his mouth

Knowing this is an essential part of being a responsible bearded dragon owner.

So, why does my bearded dragon keep his mouth open?

A bearded dragon will certainly store its mouth open for the adhering to reasons:

To regulate warmth and also body temperatureAs a kind of extending its mouth musclesAs a sign of aggression and dominanceDue to a respiratory infectionTo screen alpha traits to one more bearded dragon

Read on for even more details and also exactly how to tell the distinction between the possibilities.


Table of Contents

5 Reasons Bearded Dragons Keep Their Mouth Open

5 Reasons Bearded Dragons Keep Their Mouth Open

In this area, we detail the reason for an open mouth and what to carry out to help (if you require to).

#1 Heat Regulation

Heat regulation is the many widespread factor for an open mouth.

When the bearded dragon is a little as well hot while relaxing under the warm lamp, it opens up its mouth to cool the remainder of its body dvery own.

You recognize this is why your beardy’s mouth is open once it does this for a long time while basking.

How Heat Regulation Works

All pets have actually a body temperature regulation procedure.

On humans, we sweat, which cools our bodies dvery own.

Bearded dragons don’t have sweat glands, however opening their mouths is their variation of sweating.

Keeping the mouth open up allows an much easier move of air temperature take place inside and exterior their bodies.

What You Should Do About Heat Regulation


This behavior is dubbed gaping, and also it’s a sign the dragon has accomplished the perfect balance of inner temp.

They desire to be hot when basking.

The warm from the lamp (or sun in the wild) gets the body temp up while the open mouth lowers it to the specific right temperature.

If your dragon ends up hiding instead of basking, this is a sign the temperature in the enclocertain and under the basking lamp might be as well high.

#2 Stretching

Similar to other pets, bearded dragons should stretch and also relocate all of the parts of their bodies.

They likewise yawn just choose various other pets also.

Stretching might be the cause of your bearded dragon’s open up mouth.

You’ll recognize if this is the cause as soon as your dragon does this for a brief duration.

How It Works

Bearded dragons, like various other creatures, have actually a integrated sense as soon as a muscle hasn’t remained in usage for a while and needs to stretch for security.

In humans, this happens after not utilizing your muscles for an extensive period, such as after resting , sitting in a meeting, or riding in a automobile.

It’s the same for bearded dragons.

They have most muscles in their head and face, consisting of their beards.

When they move these for extending or yawning, the mouth demands to be open up because all of these components job-related together.

What You Should Do

Enjoy the show!

It may look alarming and also trick you into thinking your bearded dragon is crazy.

Their stretching looks a tiny twitchy at times, but it’s normal.

When their beard is up, it additionally appears aggressive, but it’s just simple stretching.

#3 Aggression

On the various other hand also, if the beardy feels endangered or panicked, it opens up its mouth as component of an aggressive posture.

Long-term stress on your pet have the right to cause negative health and wellness and also disease, so it’s necessary to deal with this.

You recognize this is the reason your beardy’s mouth is open as soon as the mouth is open up, the beard is up, the dragon hisses, and also the reptile attacks anything relocating in the tank.

When an pet feels intimidated, its “fight or trip response” is triggered.

In the instance of the bearded dragon, this means it’s raising its beard and puffing out its chest to show up bigger and more threatening to the various other animal.

They likewise open up their mouth wide and host it tright here.

This adds to the size illusion of the beard and body and also mirrors it’s all set to bite.

A bearded dragon bite isn’t venomous (although they carry out develop harmmuch less venom), and it won’t seriously injure you. But it does hurt.

Your bearded dragon is stressed out! It would be best if you calmed it dvery own.

Check out our 7 strategies on exactly how to calm dvery own a bearded dragon for thorough indevelopment.

In basic, to calm your beardy, you should do these 3 things:

Rerelocate the threat/overstimulation.Put your bearded dragon wbelow it feels safe.Give it time to obtain offered to your visibility again.

If you don’t, your bearded dragon may not calm down easily and also reprimary stressed.

They’re likewise smart creatures and will begin to associate you via threatening instances if you don’t take steps to calm them.

#4 Respiratory Infection

Respiratory infection is the huge one to watch out for.

A bearded dragon may be maintaining its mouth open up if it has actually a respiratory infection.

Respiratory infections present much favor gaping for warm regulation, yet look for these various other signs:

Mucus around the eyes or noseWheezing, coughing, or crackling once breathingExtreme absence of energy and also appetite

“Respiratory” describes the breathing and oxygecountry process.

When your beardie is sick, its breathing capacity might be endangered .

To acquire more air, it opens up its mouth to access as much oxygen as possible.

When you view the indicators over and suspect a respiratory infection, acquire your bearded dragon to the vet.

Unfortunately, it’s not somepoint you will certainly be able to settle on your very own.

This happens even through the finest care.

Just obtain your pet to the vet, and it’ll all be simply fine.

#5 Alpha Traits

If you very own multiple bearded dragons that deserve to see each other, one of them is most likely displaying that they’re the alpha.

In nature, these lizards are solitary creatures, picking to live alone.

If you’re real estate bearded dragons where they deserve to view one another, it’s bound to reason troubles.

This is wright here the more dominant one will certainly leave their mouth open up to present the various other one who’s alpha comparable to head bobbing and a black beard.

This deserve to reason the much less leading or submissive bearded dragon health concerns such as metabolic bone disease given that they’ll become stressed and frequently stop basking.

You will watch them begin glass surfing, avoiding their basking spot, not eating the juicy wax worm, and you’ll check out this beautiful exotic pet go through pain.

To prevent this, constantly save your inland also bearded dragon in separate tanks and wbelow they cannot see each various other and you must see the aggressive behavior go amethod.

Keeping them in the exact same room is fine as long as tright here is a visual divide between them and also they can’t physically see each various other.

Some civilization additionally feed their pets in separate tanks for miscellaneous factors and also if you’re interested in finding out about this we have actually a article spanning feeding bearded dragons in sepaprice tanks you’ll favor.


Now you know why your bearded dragon keeps his mouth open.

This bearded dragon behavior is viewed in all stperiods of their life so even your baby bearded dragon lizard might execute this.

In a lot of instances, this is perfectly normal actions as a result of stretching or heat regulation.

But it can be a sign of anxiety or respiratory infection.

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Use the guide over to aid you decide what you must execute, and once in doubt, go to a reptile vet.