It’s important to know about the various body postures your reptile might display and what they could mean.

You are watching: Why do bearded dragons open their mouths

Knowing this is an important component of being a responsible bearded dragon owner.

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

A bearded dragon will save its mouth open up for the adhering to reasons:

To manage warmth and also body temperatureAs a type of stretching its mouth musclesAs a sign of aggression and dominanceDue to a respiratory infectionTo screen alpha traits to another bearded dragon

Read on for more details and just how to tell the difference 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 mouth and what to do to help (if you require to).

#1 Heat Regulation

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

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

You understand this is why your beardy’s mouth is open up as soon as it does this for a lengthy time while basking.

How Heat Regulation Works

All animals have actually a body temperature regulation process.

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

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

Keeping the mouth open up lets an easier transfer of air temperature occur 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 actually 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 exact appropriate temperature.

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

#2 Stretching

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

They likewise yawn just favor various other animals too.

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

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

How It Works

Bearded dragons, like various other creatures, have a built-in sense once a muscle hasn’t remained in use for a while and requirements to stretch for safety.

In human beings, this happens after not using your muscles for an extended duration, such as after sleeping , sitting in a meeting, or riding in a vehicle.

It’s the same for bearded dragons.

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

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

What You Should Do

Enjoy the show!

It might look alarming and also trick you right into reasoning your bearded dragon is crazy.

Their extending looks a little twitchy at times, however it’s normal.

When their beard is up, it likewise seems aggressive, however it’s just basic extending.

#3 Aggression

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

Long-term stress and anxiety on your pet have the right to cause negative health and condition, so it’s important to attend to this.

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

When an animal feels endangered, its “fight or flight response” is caused.

In the case of the bearded dragon, this suggests it’s elevating its beard and also puffing out its chest to appear larger and also even more threatening to the other pet.

They additionally open their mouth wide and organize it tbelow.

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

A bearded dragon bite isn’t venomous (although they do create 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 techniques on exactly how to calm down a bearded dragon for in-depth information.

In general, to calm your beardy, you need to perform these three things:

Rerelocate the threat/overstimulation.Placed your bearded dragon where it feels safe.Give it time to acquire offered to your existence again.

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

They’re also smart creatures and will start to associate you through threatening instances if you don’t take actions to calm them.

#4 Respiratory Infection

Respiratory infection is the massive one to watch out for.

A bearded dragon might be keeping its mouth open if it has actually a respiratory infection.

Respiratory infections present a lot prefer gaping for heat regulation, but look for these various other signs:

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

“Respiratory” refers to the breathing and also oxygenation process.

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

To obtain more air, it opens its mouth to accessibility as much oxygen as feasible.

When you check out the indications over and also suspect a respiratory infection, acquire your bearded dragon to the vet.

Unfortunately, it’s not something you will certainly have the ability to settle on your very own.

This happens also through the finest treatment.

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

#5 Alpha Traits

If you very own multiple bearded dragons that have the right to watch each various other, among 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 can watch one another, it’s bound to cause difficulties.

This is wbelow the even more dominant one will certainly leave their mouth open up to show the other one who’s alpha similar to head bobbing and also a black beard.

This deserve to reason the less leading or submissive bearded dragon wellness worries such as metabolic bone illness given that they’ll end up being stressed and regularly stop basking.

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

To prevent this, constantly save your inland bearded dragon in sepaprice tanks and where they cannot view each various other and you have to watch the aggressive habits go ameans.

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

Some world additionally feed their pets in sepaprice tanks for miscellaneous factors and if you’re interested in learning around this we have actually a short article extending feeding bearded dragons in sepaprice tanks you’ll favor.


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

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

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

But it could be a sign of tension or respiratory infection.

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Use the overview over to help you decide what you have to carry out, and also as soon as in doubt, go to a reptile vet.