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Why is Bearded Dragon Mouth Open?

Why is Bearded Dragon Mouth Open?

There are a few reasons why bearded dragons may open their mouths. One reason is that they may be trying to cool down their bodies. Bearded dragons have a third eyelid that covers their eyes when they're hot, and opening their mouths allows more air to circulate over their heads and help them cool down. Another reason bearded dragons may open their mouths is if they're trying to scare away a predator or another animal.

Bearded dragons usually sit with their jaws apart when they reach their max. temp. This activity, known as cracking, indicates that the lizard is at an ideal basking temperature. The Bearded Dragon's body heat is radiated through this hole. Open mouth basking is a natural activity of a bearded dragon.

    Why did Beardie open his mouth?

    Your bearded dragon will most likely have its mouth open to regulate its body temperature, but there are a variety of additional reasons why your pet reptile might behave this odd.

    At first glance, a Bearded Dragon with its jaws wide open may seem odd. Everything else seems to be fine, but they insist on keeping the mouth open! why?

    This is one of the most frequently asked topics among Beardie owners, with several plausible explanations. You'll have to be vigilant and do some detective work to find it.

    To make the process simpler, we've put together a useful list of reasons why bearded dragons often have their jaws apart for a long time. Now all you have to do is follow along and figure out which explanation applies to you!

    The gap is used to control the temperature

    Because bearded dragons do not sweat like other lizards, but regulate their body temperature. A lizard's body temperature must be controlled in a variety of ways, one of which is opening its mouth. In this case, this action is called gapping because it lowers the body temperature by removing excess heat from the body.

    It is most common for Beardie to yawn while sunbathing. This usually means he does this when he is sitting on a rock under a heat lamp. If the dragon is trying to drill holes in other parts of the tank, you should make sure there is a cool spot for the dragon to rest.

    A Bearded Dragon's terrarium should contain both cold and hot areas to heat and cool as needed.

    They are rubbing their beards.

    If the muscles are not used for a long time, they need to be stretched.

    Stretching is the first thing most people do in the morning, after a long trip, or after attending a meeting. The same goes for Bearded Dragons. They need to expand their muscles just like humans.

    If you open the lips of a bearded dragon, you can see the bearded dragon drooping. When a bearded dragon spreads its beard, it usually opens its jaws for a moment.

    When your bearded dragon is about to start molting, you will see him extend his beard. During molting season, lizards can even blow off their whiskers. Stretching and puffing both help loosen the stubble and the skin surrounding the hair, allowing the beard to flow.

    Growing a beard is a common activity for reptiles (even if the lizards don't fall out soon). You will be able to identify this with practice!

    Keep the tank close to the window

    Keeping the Bearded Dragon's tank close to the window might help him. The outside world can give them a lot of stimulation.

    Watching clouds move and seeing trees swaying in the breeze can make them feel like they are in their original environment.

    It can also be a scary area depending on where you live, and you'll often see dragons getting angry at anything you see outside your windows.

    Animals such as cats and birds can force the dragon to open its jaws aggressively in fright.

    If this happens occasionally, it's not a big deal, but if it happens every day, you might consider moving it away from the window.

    His mouth is open because of aggression.

    Beardy dragons are usually calm reptiles, but when angry for any reason, it is customary to open their jaws to show an aggressive appearance.

    If the bearded dragon behaves aggressively, it will display a variety of additional actions.

    Pay attention to the following items:
    • An enlarged beard
    • Tall posture hiss
    • Beard becomes black
    • Shaking your head at a great speed

    Your dragon may not exhibit all of these behaviors, but if it is forcibly opening its mouth, it is noteworthy if it does not display at least one behavior.

    Giving the dragon a habitat with plenty of hiding places will help reduce aggression. Because they usually do it when they feel threatened.

    Here's a great article detailing everything you need to create a fantastic habitat for your dragon to feel happy and protected.

    Lung infection

    If you see a bearded dragon making a faint clicking sound while breathing with its lips open for extended periods of time, you may have a respiratory infection.

    Bearded dragons cannot cough, so if their respiratory tract is blocked, they open their mouths to breathe. You may hear a high-pitched sound similar to a sneeze as they try to clear mucus from the lungs.

    Other signs of respiratory problems in bearded dragons include lack of food or energy, discharge or foam in the eyes or nostrils, and unusually rapid breathing.

    Respiratory infections can be viruses, bacteria, parasites, or fungi, and bacterial infections are the most common. High humidity can cause a bacterial infection in a bearded dragon's lungs. To avoid this problem, keep the humidity level in the tank below 40%. With a hygrometer, you can track the humidity level in your tank and prevent the gecko from becoming unhealthy.

    Feeling dangerous

    Of course, humans aren't the only ones who can surprise bearded dragons. If you keep more than one bearded dragon in a cage, unless recommended, one of the males can usually be violent towards the other. This can surprise a female who can react by opening her chin and making a hissing sound.

    If you have other pets, you can scare the bearded dragon by approaching the cage, knocking, or making loud noises that startle the dragon. If the cage is close to a window, the noise of a passing car or a neighbor's dog can be a source of aggression.

    Find out what kind of noise or other activity triggers a reaction and how it stops. If moving the cage to a quieter place or away from a window would help, do so.

    Children's toys and small objects

    Strange when you think about it, small items like children's toys and socks can make a Bearded Dragon hostile.

    It is quite simple for a Bearded Dragon to confuse a small toy with a predator, and often react violently, including with an open mouth.

    You will usually observe the hissing or other behavior we discussed earlier. New decorations and other such items could potentially be a threat to dragons.

    Toys and clothes are usually fast moving, so it shouldn't be a problem for long periods of time. However, decorations are often fixed in one place, so if you feel they are causing problems for a long time, you may want to consider relocating them.

    They are retaliating against another Beard Dragon.

    Bearded dragons can also extend their jaws in response to other bearded dragons.

    Bearded dragons are solitary creatures by nature. Trying to keep both in the same tank can cause problems.

    When two bearded dragons are housed together, usually one will struggle to dominate the other. The dominant person will open his mouth to let others know that he is an alpha. The less dominant Beardie may become restless and stop eating and be denied access to the dominant lizard's basking area.

    If you see this, you have to split the bearded dragons into two tanks. If the Beardies can see each other, they may need to split their tanks, as the race for supremacy will likely continue even if they are in different tanks.

    Bearded dragons are very protective of their realm. When two lizards are bred together, the more dominant lizard may (but not always) have their mouths open to protect certain parts of the tank from other lizards. Hideouts, caves and basking places would be included in these locations.

    Mating season.

    They are opening their mouths due to the mating season. Your dragon hormones will become fierce and hostile at certain times of the year. They have the ability to open their jaws in an aggressive way for no apparent reason.

    When you try to control them, they can become violent towards you, the owner. When humans or pets approach the tank, they often take over the territory and become violent.

    This is natural behavior and there is nothing you can do to change it. The good news is that when the hormones stabilize, everything returns to normal.

    Do bearded dragons open their mouths when they are happy?

    Your Bearded Dragon will lead an active life if it is peaceful and contented. Of course, this includes sunbathing, so if you see a reptile smiling with its mouth wide open, don't worry. It's just that it's a little too hot for him.

    On the other hand, a widening of the jaw during hissing or uncomfortable behavior may indicate that the bearded dragon is under stress.

    What does it mean when your bearded dragon kisses you?

    Bearded dragons survey their surroundings and lick them to become familiar. This includes you too, so don't be alarmed if your reptile licks your hands. They are getting to know you. Thanks to Jacobson's organs, their tongues help gather information about their environment.

    Jacobson's organ helps the reptile complete the information it receives from its eyes and hearing by examining particles collected by the reptile's tongue. You can see bearded dragons lick everything they touch to better understand their surroundings. Even air.

    When is the time to see the veterinarian?

    A bearded dragon's mouth is usually not cause for concern, but if you detect an unusual pattern in your lizard's behavior, you should see your veterinarian. A particularly lethargic attitude or lack of hunger could potentially be an indicator of respiratory disease, endangering the reptile's health.

    Other symptoms of affected geckos include drainage of the eyes or nostrils, and unusually rapid breathing.

    Respiratory infections can have a variety of causes. Bacteria, fungi, parasites and viruses are all possible. Consulting with a professional is the best way to ensure that your pet gets proper treatment and avoids problems.


    As you can see, bearded dragons with open jaws are usually nothing to worry about. This usually happens when they are basking (also known as formal) and you will see more of them over time.

    However, it can also be a sign of a more serious problem.

    If your Bearded Dragon's mouth is open due to frequent stress or respiratory problems, it is your responsibility to address the issue. If they don't feel well, take them to the vet. Make the necessary changes to their living environment as soon as possible!

    After fine-tuning everything, opening your mouth is no longer a concern.

    It's perfectly normal for a bearded dragon to have their mouth open in most situations, but there are a few cases where it can be cause for concern.

    It could indicate that your bearded dragon is terrified, aggressive, or worse, has a respiratory condition that affects breathing and requires quick treatment. However, it is more likely that your bearded dragon has an open mouth or is regulating its body temperature and is more likely using an open mouth to blow out hot air.

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    About the author

    I am Paige and I love pets. I have a bearded dragon and a husky. My bearded dragon's name is Bart and he is a lot of fun. He likes to eat crickets and play in his cage. My husky's name is Sandy and she is a lot of fun, too. She likes to run and play in the park. I love taking them for walks and playing with them. They are both a big part of my family.
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