Seizure or Tremor? Knowing the Difference Could Help Your Pet

Watching your pet suddenly begin shaking, collapse to the floor, or lose control of its body can be one of the most frightening experiences a pet owner will ever face. In those first few moments, it's natural to panic and wonder, "Is my pet having a seizure?"

While seizures and tremors can sometimes appear similar, they are not the same thing. Understanding the differences can help you remain calmer, provide valuable information to your veterinarian, and most importantly, keep your pet safe.

Can Any Pet Have a Seizure?

The short answer is yes.

Although seizures are most commonly discussed in dogs, virtually any pet with a brain can experience a seizure. Cats, birds, rabbits, ferrets, and even reptiles may develop seizures depending on the underlying cause.

Dogs experience seizures more frequently than many other companion animals, which is why much of the information in this article focuses on what dog owners are most likely to observe. However, any first-time seizure or unexplained episode of shaking in any pet deserves prompt veterinary evaluation.

What Is a Seizure?

A seizure is caused by abnormal electrical activity within the brain.

During a generalized seizure, many pets will lose awareness of their surroundings and may collapse onto their side. Their legs may paddle as though they are swimming, their body may become stiff, and they may drool, chomp their jaws, urinate, or defecate.

After the seizure ends, many pets experience what veterinarians call the post-ictal phase.

This recovery period may last only a few minutes—or several hours.

During that time, your pet may:

• Seem confused.

• Pace aimlessly.

• Be temporarily blind.

• Appear restless.

• Stumble or seem unsteady.

• Be unusually thirsty or hungry.

• Not recognize familiar surroundings right away.

These temporary changes are often one of the strongest clues that a true seizure has occurred.

What Is a Tremor?

A tremor is different.

Rather than abnormal electrical activity affecting the brain, a tremor is an involuntary muscle movement.

Many pets experiencing a tremor remain awake, alert, and aware of their surroundings. They may continue standing, make eye contact with you, respond when you call their name, and often return to normal once the episode has ended—unless the underlying medical problem is still present.

Tremors can occur for many reasons, including:

• Pain

• Anxiety or fear

• Cold temperatures

• Low blood sugar

• Certain medications

• Toxin exposure

• Muscle disorders

• Neurological disease

Because there are so many possible causes, every unexplained tremor deserves veterinary attention.

Some Breeds Are More Predisposed

While any dog can develop seizures, certain breeds appear to have a higher risk of inherited epilepsy.

These include:

• Beagles

• Border Collies

• Australian Shepherds

• Labrador Retrievers

• Golden Retrievers

• German Shepherds

• Belgian Tervurens

• Standard Poodles

Keep in mind that seizures can also develop later in life because of toxins, infections, head trauma, liver disease, brain tumors, or other medical conditions.

What Should You Do?

If you believe your pet is having a seizure:

Stay calm.

Your pet is not aware of what is happening and cannot control its movements.

Move nearby furniture or objects that could cause injury, but avoid restraining your pet unless absolutely necessary for safety.

Many people have heard that humans can swallow their tongue during a seizure.

Fortunately, that is a myth—and the same is true for our pets.

The tongue is attached to the floor of the mouth and cannot be swallowed. However, involuntary jaw movements are common during a seizure. Attempting to place your hands inside your pet's mouth can result in a serious bite, even from the gentlest companion.

Instead, focus on protecting your pet from injury.

If possible:

• Start a timer.

• Dim lights and reduce noise.

• Record a short video if it can be done safely.

That video may become one of the most valuable tools your veterinarian has in determining whether your pet experienced a seizure, a tremor, or another neurological event.

When Is It an Emergency?

Most seizures last less than two minutes, even though they often feel much longer.

A seizure lasting longer than five minutes—or repeated seizures without your pet fully recovering between episodes—is considered a medical emergency and requires immediate veterinary care.

There Is Hope

Fortunately, many pets diagnosed with seizure disorders go on to live long, happy, and active lives.

Today's veterinary medicine offers medications and treatment plans that successfully manage seizures for many patients. Early diagnosis, careful observation, and good communication with your veterinarian are key to finding the best treatment approach.

The Most Important Tool You Have

Whether your pet experiences a seizure, a tremor, or another neurological episode, never underestimate the value of your own observations.

You know your pet better than anyone else.

By remaining calm, noting what happened before the event, timing the episode, recording a video when possible, and sharing those observations with your veterinarian, you become an important member of your pet's healthcare team.

Preparedness isn't just about knowing what to do during an emergency—it's about recognizing when something isn't normal and acting quickly.

That knowledge could make all the difference for the pet that depends on you.