- Dr. Savanna Gephard
- May 12
- 5 min read
Updated: 4 hours ago
If your dog is shaking, shivering, trembling, or panting, you may be wondering whether it’s something to worry about. In some cases, shaking is a normal response to cold temperatures, excitement, or anxiety. In others, it may be a sign of an underlying health problem. Because some dogs naturally shake more than others, it can be difficult for pet owners to know when shaking is cause for real concern.
VEG ER for Pets emergency vet hospital can diagnose your dog if they're shaking and offer advice and any necessary treatment. Open 24/7, see a VEG near you.
7 reasons why dogs shake, tremble, or shiver
If you're not sure why your dog is shaking, watching for other changes in their behavior can provide important clues. While shaking can be caused by anxiety or excitement, it may also be a sign of pain or an underlying health condition. Paying close attention to your dog's symptoms can help you determine whether the behavior is temporary or something that requires veterinary attention.
1. Dog is shaking because they're cold.
Despite their fur coats, dogs can get cold just like people. Dogs that are outside too long in the cold can start to shiver if they are not able to get inside to warm up. Smaller dogs are more susceptible to becoming chilled in the cold, but any size dog can get too cold if they are outside when the temperatures are low.
Dogs can wear jackets and dog booties when they go outside in the snow or in the cold weather to play, but they should never be left outdoors long-term when the weather is cold. Learn more about how to protect your dog from cold weather.
2. Dog is in pain or has an illness.
Dogs that are in pain can shake as an expression of the discomfort that they are in. These animals might also be lethargic, act disinterested in food or water, and seem to generally just not feel well. Bring your dog to your nearest VEG emergency vet hospital if they stop eating and drinking, even if the shaking is mild.
3. Dog is shaking due to a fever.
Dogs can get fevers just like people. Some illnesses or even some pain conditions can lead to a fever that can make your dog feel chilled and thus start to shiver. Usually, only very high fevers cause shivering in dogs, so this is often a warning sign of a major problem that might need emergency attention from a vet.
4. Dog is feeling stress or anxiety.
Stress and anxiety are common causes of shaking in dogs. Changes in routine, unfamiliar environments, going to the vet, traveling, or even a visit to the dog park can all trigger a stress response that leads to trembling or shivering. Some dogs are naturally more nervous than others and may shake more frequently when they feel overwhelmed or fearful.
If your dog's shaking seems to be linked to anxiety, talk to your veterinarian. They can help identify triggers and recommend behavioral strategies, training techniques, or medications to help your pet feel more comfortable and confident even with changes in their environment.
5. Dog is shaking and feeling scared.
Is your dog shaking and acting scared? Many dogs are scared of loud noises, like thunder or fireworks, as well as common everyday objects like vacuum cleaners, motorcycles, and skateboards. Since their senses are sharper than humans, these items can easily cause fear in your dog, leading them to shake or tremble.
6. Dog is shaking because they're excited.
If you’ve ever witnessed your dog getting the zoomies or whirling in circles, you know that dogs definitely do feel excitement. And yes, dogs can also shake when they feel excited!
This is more common in high energy breeds such as hunting dogs - but it can happen to any dog that is excited. The more intense a dog’s excitement, often the more intense their shaking. This can make pet parents think their pet is sick when in reality, they just need to release some of their nervous energy through play or exercise.
7. Dog is shaking due to old age.
It is very common for older or senior dogs to shake as they age. These tremors can be related to weakening joints, arthritic pain, or other health conditions common in older dogs. Your primary care vet can help you assess and treat these symptoms, but know that tremors can be part of the aging process for some dogs. Certain breeds are also more likely to develop tremors as they age, so what's normal for one dog may not be normal for another - it's important to have any new or worsening symptoms checked by your veterinarian.
Why is my dog shaking while sleeping?
Ah, your pup is peacefully snoozing away…but you might notice that they’re making twitchy movements when sleeping. Seeing your dog shake or shiver while sleeping can be unsettling, but it's not always a cause for concern. Here's how to tell the difference:
Common, non-emergency reasons for shaking during sleep
If your dog twitches, paddles their legs, or makes small shaking movements while sleeping, they're likely dreaming. Yes - scientists believe that dogs do dream! Unless they’re causing harm to themselves or others while sleeping, there is no need to jolt them out of their slumber.
Dogs may also shiver while sleeping if they're cold. See if your cuddles stop the shaking - your dog’s skin may need your body warmth or a blanket to stop the shivers. Check the room temperature to see if that would be a logical reason for your dog’s shaking.
When shaking during sleep may be a concern
Shaking that is intense, frequent, or continues after your dog wakes up may be a sign of an underlying medical issue. Pain, neurologic disorders, toxins, and certain infectious diseases like distemper can all cause abnormal shaking or tremors.
Contact a vet ASAP if your dog:
If you're concerned about your dog's shaking, whether they're asleep or awake, it's always best to have them evaluated by a veterinarian.
VEG ER for Pets 24-hour emergency vet hospital can diagnose your dog's shaking
No matter the reason for your dog’s shaking behavior, you will want to ensure that you pay attention to the issue and seek a resolution. Contact your nearest VEG location if you have any questions about your dog shaking. You will always speak directly to an ER-trained veterinarian who has your dog’s health and best interest in mind.
