Hamsters are active, energetic pets and don’t usually breathe fast. If you notice your hamster’s breathing pattern has changed, you may be wondering what’s causing it. Be sure to keep an eye on your hamster and call a vet if the condition doesn’t improve.
The most common cause of fast breathing in hamsters is an illness, such as pneumonia or any other respiratory infection. Other things that can cause your hamster to breathe fast may include heat, being scared, or being injured. If the condition doesn’t improve, consult with a vet.
This article will explain the different things that could be causing your hamster’s fast breathing in greater detail. It’ll also present other symptoms to look out for, so be sure to keep reading to learn more.
Is It Normal for Hamsters To Breathe Fast?
Generally, it isn’t normal for hamsters to breathe fast. Breathing fast is a sign of illness in many cases, so you should call your vet as soon as possible if the condition doesn’t improve. Hamsters are small and delicate, so infection can be fatal if not treated promptly.
If you notice your hamster breathing fast for a few moments, but then it starts breathing normally, there’s likely nothing wrong. It might have simply been scared or confused.
You should, however, keep an eye on it for a while to make sure it’s okay.
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The Main Things That Cause Hamsters To Breathe Fast
Although respiratory illnesses are the most likely cause of your hamster’s fast breathing, other things could be causing it as well. These things include being too hot, being too cold, being scared, or having an injury.

Below, I’ll talk about all the main things that might be causing your hamster to breathe fast in more detail.
Respiratory Illness
Respiratory illnesses are one of the most common problems that hamsters experience. In most cases, your hamster will contract a respiratory infection if it’s in a cold room. Alternatively, it may have come into contact with another sick animal or human.
Like humans, respiratory illnesses in hamsters can also lead to more severe conditions like pneumonia. To prevent this, take your hamster to the vet as soon as possible. If the infection is bacterial, the vet will prescribe antibiotics in most cases.
Other than fast breathing, other symptoms of a respiratory infection include:
- Excessive sneezing
- Mucous in the nose and eyes
- Sluggishness and tiredness
- Shaking
- Loss of appetite
Also, read, How To Clean Hamster Cage
Heat
If your hamster gets overheated, it may start breathing heavily. Try to leave your hamster in a cool