It’s crucial to recognize about the different body postures your reptile might show and what they can intend.

You are watching: Why do bearded dragons open their mouths

Knowing this is a critical component 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 following reasons:

To manage warmth and also body temperatureAs a form of extending its mouth musclesAs a authorize of aggression and dominanceDue to a respiratory infectionTo screen alpha traits to an additional bearded dragon

Read on for even more details and also just 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 section, we information the reason for an open up mouth and what to execute to help (if you require to).

#1 Heat Regulation

Heat regulation is the a lot of widespread factor for an open mouth.

When the bearded dragon is a tiny also warm while relaxing under the warm lamp, it opens its mouth to cool the remainder of its body dvery own.

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

How Heat Regulation Works

All pets have a body temperature regulation process.

On humans, we sweat, which cools our bodies down.

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

Keeping the mouth open allows an simpler deliver of air temperature occur inside and outside their bodies.

What You Should Do About Heat Regulation


This habits is referred to as gaping, and also it’s a sign the dragon has achieved the perfect balance of inner temp.

They want to be hot as soon as basking.

The heat from the lamp (or sunlight in the wild) gets the body temp up while the open mouth lowers it to the precise best temperature.

If your dragon ends up hiding instead of basking, this is a sign the temperature in the enclosure and also under the basking lamp may be also high.

#2 Stretching

Similar to various other animals, bearded dragons must stretch and relocate all of the components of their bodies.

They additionally yawn just prefer other animals too.

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

You’ll know if this is the reason once your dragon does this for a brief period.

How It Works

Bearded dragons, prefer other creatures, have actually a integrated feeling when a muscle hasn’t been in use for a while and needs to stretch for safety and security.

In human beings, this happens after not utilizing your muscles for an extended period, such as after resting , sitting in a meeting, or riding in a auto.

It’s the very same for bearded dragons.

They have actually most muscles in their head and also confront, including their beards.

When they move these for stretching or yawning, the mouth requirements to be open up because every one of these components work-related together.

What You Should Do

Enjoy the show!

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

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

When their beard is up, it also seems aggressive, but it’s simply straightforward extending.

#3 Aggression

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

Long-term anxiety on your pet have the right to bring about poor health and also condition, so it’s important to resolve this.

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

When an pet feels endangered, its “fight or trip response” is activated.

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

They also open their mouth wide and host it tright here.

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

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

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

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

In basic, to calm your beardy, you need to execute these three things:

Rerelocate the threat/overstimulation.Put your bearded dragon where it feels safe.Give it time to obtain supplied to your existence aobtain.

If you don’t, your bearded dragon might not calm dvery own easily and also reprimary stressed.

They’re likewise smart creatures and also will start to associate you via threatening cases 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 a respiratory infection.

Respiratory infections current much prefer gaping for warmth regulation, but look for these other signs:

Mucus about the eyes or noseWheezing, coughing, or crackling as soon as breathingExtreme lack of energy and also appetite

“Respiratory” describes the breathing and oxygenation procedure.

When your beardie is sick, its breapoint capacity may be endangered .

To get even more air, it opens its mouth to accessibility as a lot oxygen as feasible.

When you watch the signs above and also suspect a respiratory infection, acquire your bearded dragon to the vet.

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

This happens also through the ideal treatment.

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

#5 Alpha Traits

If you own multiple bearded dragons that can see each various other, among them is likely displaying that they’re the alpha.

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

If you’re housing bearded dragons where they have the right to view one an additional, it’s bound to reason problems.

This is where the even more dominant one will leave their mouth open to present the other one who’s alpha similar to head bobbing and a black beard.

This can cause the much less dominant or submissive bearded dragon wellness worries such as metabolic bone disease because they’ll come to be stressed and frequently sheight basking.

You will certainly see them begin glass surfing, preventing their basking spot, not eating the juicy wax worm, and you’ll see this beautiful exotic pet go with pain.

To prevent this, always keep your inland bearded dragon in separate tanks and also wbelow they cannot view each other and also you must watch the aggressive habits go amethod.

Keeping them in the very same room is fine as lengthy as tright here is a visual divide in between them and they can’t physically view each other.

Some people likewise feed their pets in sepaprice tanks for miscellaneous factors and if you’re interested in discovering about this we have a short article extending feeding bearded dragons in sepaprice tanks you’ll favor.


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

This bearded dragon actions is checked out in all stages of their life so also your baby bearded dragon lizard might carry out this.

In a lot of situations, this is perfectly normal actions as an outcome of stretching or warm regulation.

But it can be a authorize of stress or respiratory infection.

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Use the guide over to help you decide what you need to perform, and also once in doubt, go to a reptile vet.