Why Is My Dog Shaking? Decoding the Shivers and When to Worry
Dogs communicate in many ways, and sometimes that communication involves body language we don’t immediately understand—like shaking. Have you ever wondered, “Why is my dog shaking?” Shivering in dogs can mean a wide range of things, from a simple response to temperature to a sign of emotional or physical stress. While some causes are harmless, others could signal a need for veterinary attention. This blog breaks down the most common reasons behind the shaking and when you should schedule a visit with your veterinarian at All Pets Vet Hospital in Branchburg, NJ.

Common Non-Medical Reasons Dogs Shake
Shaking doesn’t always mean something is wrong. In many cases, dogs shake for completely normal and non-threatening reasons.
Excitement or Anticipation
Some dogs shake when they get excited. Whether it’s the anticipation of a walk, a treat, or seeing their favorite person, excitement can cause a temporary tremble. This type of shaking usually resolves once the exciting event is underway and doesn’t indicate a health issue.
Cold Temperatures
Dogs can shake when they’re cold, just like humans. Short-haired and small breeds are particularly sensitive to colder weather. If your dog is shaking and the temperature has dropped, it may be their way of staying warm. In these cases, providing a blanket or sweater can often help.
Stress or Anxiety
Dogs experiencing anxiety may shake, pant, or pace. Common triggers include thunderstorms, fireworks, separation from their owners, or unfamiliar environments. If your dog shakes in response to these situations, it may be a behavioral issue rather than a physical one.
When Shaking Signals a Health Problem
If you’ve been asking, “Why is my dog shaking?” and there’s no clear environmental or emotional trigger, it could be time to look more closely at possible health concerns.
Pain or Injury
Pain is one of the leading causes of unexplained shaking in dogs. Muscle tremors or shivering may indicate that something hurts, whether from arthritis, injury, or an internal issue. Dogs often mask discomfort, so shaking might be one of the few outward signs that something isn’t right.
Nausea or Gastrointestinal Upset
Just like people, dogs can experience nausea that leads to trembling. Shaking often accompanies symptoms like drooling, lip licking, vomiting, or refusing food. If your dog is shaking and showing any of these signs, a check-up is recommended.
Toxins or Poisoning
Ingesting toxic substances such as chocolate, xylitol, certain plants, or even medications not intended for dogs can cause shaking, seizures, or other neurological symptoms. If you suspect your dog may have eaten something harmful, seek veterinary attention immediately.
Neurological Conditions
Shaking may also be a sign of a neurological issue. Conditions like epilepsy, tremor syndrome (especially in smaller breeds), or brain inflammation can cause full-body tremors or localized shivering. These disorders often require diagnostic testing and professional management.
Breed-Specific Reasons for Shaking
Some dogs are simply more prone to shaking than others due to their breed characteristics or genetic tendencies.
Small and Toy Breeds
Breeds like Chihuahuas, Italian Greyhounds, and Yorkies often shake more than larger dogs. This may be due to a combination of high energy levels, sensitivity to cold, and a naturally nervous temperament.
White Dog Shaker Syndrome
This condition typically affects small white dogs such as Maltese or West Highland Terriers. It’s a neurological condition that causes full-body tremors without other underlying health problems. Diagnosis and treatment should be handled by your veterinarian.
Age-Related Shaking in Dogs
Age can influence why dogs shake, whether due to changes in their nervous system, muscle strength, or overall health.
Older Dogs and Muscle Tremors
Senior dogs often experience muscle weakness or tremors in their legs due to age-related decline. These tremors are generally harmless but should still be evaluated to rule out joint pain, arthritis, or neurological issues.
Canine Cognitive Dysfunction
Similar to dementia in humans, cognitive dysfunction can affect older dogs. Symptoms may include confusion, disorientation, and shaking. While there’s no cure, veterinary care can help manage the condition and improve your dog’s quality of life.
Situational Triggers That Can Cause Dogs to Shake
Sometimes, dogs shake in response to very specific, situational factors that are temporary but important to recognize.
Visits to the Vet or Groomer
Many dogs shake when they visit the vet or groomer. This reaction is often due to a mix of anxiety, unfamiliar smells, and past associations. While not dangerous, repeated anxiety-related shaking is something you can bring up with your vet.
Car Rides
Car travel is a common trigger for shaking in dogs. Whether it’s motion sickness or nerves, some dogs don’t enjoy being in the car. Solutions may include training, crate travel, or speaking to your vet for additional support.
What to Do If You Notice Your Dog Shaking
If you’re still asking yourself, “Why is my dog shaking?” after checking for environmental or emotional causes, it’s time to consider a veterinary evaluation. Shaking that appears suddenly, increases in intensity, or is paired with other symptoms—like vomiting, lethargy, limping, or loss of appetite—should be addressed by a professional. A physical exam, bloodwork, or additional diagnostics can help determine what’s going on.
It’s especially important not to ignore repeated episodes or changes in behavior. Even subtle signs may point to a larger issue. If you’re concerned, we encourage you to call All Pets Vet Hospital at 908-707-1555 to schedule an appointment. We’re here to help you understand what’s behind your pet’s behavior.
Help Your Dog Feel Comfortable and Confident Again
While it’s not always easy to pinpoint the cause of your dog’s shaking right away, it helps to know what to watch for. Asking “Why is my dog shaking?” is a responsible first step toward identifying whether your pet is dealing with stress, cold weather, pain, or something more serious. Staying informed and observant helps you spot changes early and get the veterinary care your dog may need. If you’re ever uncertain, reach out to our team at All Pets Vet Hospital in Branchburg, NJ, by calling 908-707-1555. We’ll take the time to evaluate your pet and provide the care they need to feel their best.
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