If your dog is shaking back and forth—especially if the movement is rhythmic or persistent—it may signal an underlying medical or neurological condition. While brief shivers from cold or excitement are normal, repeated or forceful back-and-forth shaking is not and could point to something serious.
We outline the common causes of dog shaking back and forth, what you can do at home, and when to seek veterinary help.
Why Is My Dog Shaking Back and Forth — Why It Happens
Dogs may shake back and forth due to tremors, neurological disorders, pain, or anxiety. Unlike momentary shivering, this kind of motion often reflects an internal problem affecting the nervous system, muscles, or brain.
Common Causes of Dog Shaking Back and Forth
Generalized Tremor Syndrome (GTS)
Also called “white shaker syndrome,” GTS causes rhythmic, whole-body tremors that may appear as the dog shaking back and forth.
It is most common in small white breeds but can affect dogs of any size or color.
Symptoms may worsen with excitement or stress, and affected dogs may have difficulty walking steadily.
The cause is unknown, but the condition often responds well to corticosteroids prescribed by a veterinarian.
Neurological Disorders
Issues like seizures, cerebellar disease, or brain inflammation can cause abnormal body movements.
Shaking may resemble a rocking motion and be accompanied by other symptoms like disorientation, circling, or head tilting.
These disorders disrupt the brain’s ability to control motor function and balance.
Diagnosis may require imaging (MRI, CT scan), bloodwork, or a neurological exam.
Read more: Why Is My Dog Shaking and Unbalanced (Balance issues)
Muscle Weakness or Degenerative Conditions
Muscle weakness from myopathies or nerve degeneration may lead to instability and repetitive motion.
Dogs may sway, shake, or shift weight back and forth while standing or sitting.
You might notice difficulty climbing stairs, fatigue after light activity, or visible muscle wasting.
These conditions often progress slowly but require medical intervention to manage symptoms.
Anxiety or Stress Response
Dogs experiencing intense fear or anxiety may begin shaking rhythmically.
This might appear as rocking or trembling, especially during thunderstorms, travel, or vet visits.
Shaking can occur even in calm settings if the dog has underlying anxiety disorders.
Desensitization training, calming aids, or medications may help.
Inner Ear/Vestibular Problems
Diseases affecting the inner ear or vestibular nerve cause balance issues and body swaying.
Your dog may appear to rock or shake back and forth, tilt their head, or walk in circles.
Nystagmus (rapid eye movement), nausea, or reluctance to move may also appear.
Many cases improve with supportive care, though some require long-term treatment.
What to Do If Your Dog Is Shaking Back and Forth
Stay calm and gently support your dog to prevent injury, especially if they seem unstable.
Take a video of the movement to show your veterinarian—it helps in diagnosing episodic or irregular symptoms.
Limit physical activity and keep your dog in a safe, quiet environment.
Avoid giving medications unless specifically advised by your vet.
Make note of when the shaking started, how long it lasts, and any other behavioral or physical changes.
When to Call or Visit Your Vet
Seek veterinary attention if your dog:
Shakes or rocks persistently or unpredictably
Shows signs of confusion, loss of balance, or unsteadiness
Refuses to eat, drink, or move normally
Develops new or worsening neurological symptoms
Has additional issues like vomiting, head tilt, or eye changes
Prompt medical evaluation can lead to early diagnosis and more effective treatment.
Read more: Dog Shaking Like Parkinson’s (When to suspect a neurological cause)
Key Takeaway
Shaking back and forth in dogs is rarely just a harmless quirk—it often reflects neurological, muscular, or balance-related conditions.
Closely monitor your dog, record symptoms, and consult your vet as soon as possible.
With proper diagnosis and care, many underlying causes can be managed effectively to restore your dog’s comfort and mobility.