Theories on the Causes of Idiopathic Head Tremors

‘Protect The Neck’ by Studio4Null4

Not much is as distressing as seeing someone you love show behaviors that seem involuntary and out of the ordinary. Naturally, you want answers, especially if a doctor seems to contradict himself, when he tells you that even though no one knows where a symptom or condition comes from, you do not need to worry about them. Given that you arrived at this article, we understand that you might not be satisfied with this answer. We were in your shoes when Persephone, our Doberman showed idiopathic head tremors as a puppy, for the first time. In this article, we will share what we found while we peppered our integrative vet with questions, dug around on the internet, and consulted research databases.

What we want to echo before we begin: We agree with your veterinarian insofar as that you do not need to panic. Get yourself your favorite beverage, get comfortable, give your Doberman a smooch, and delve into some theories about idiopathic head tremors that we hope will give you some perspective to evaluate your situation and make more personalized decisions for your Doberman. A fair warning: many conventional veterinarians will reject some of these theories, but as a blog that tries to avoid dogma, we’d like to offer them to you.

The Question We All Might Have

The idiopathic part of the condition raises the question of how certain a veterinarian can be that the tremors are not part of a greater underlying issue that, if left ignored, may have adverse long-term effects on the dog. Some veterinarians would likely answer that there is no known or documented collective pattern to support the idea of a greater underlying problem. The issue we have with this response is that idiopathic head tremors in dogs are not exactly well studied. In dogs, they have been described in the veterinary literature, but they remain under-researched regarding their cause, long-term course, and breed-specific differences. “Absence of evidence is not evidence of absence” (sometimes attributed to Carl Sagan and Thomas Sheppard). As such, we would argue that the non-observed patterns are mostly clinical anecdotal evidence and experience-based observation. And while observation is a starting point, the lack of stronger empirical evidence of a pattern in an understudied area should warrant some humility.

A Brief Overview Of The Condition

Idiopathic, by definition, means that the condition arises spontaneously and no known cause is apparent. Idiopathic head tremors are involuntary, rhythmic movements of the head that resemble a "yes" or "no" motion without other neurological symptoms. The episodes, as you may have already noticed in your Doberman, can vary in frequency and duration and they often occur while the dog is at rest. Conventional veterinary medicine’s standpoint, as we have mentioned, is that idiopathic head tremors do neither warrant concern nor treatment. They are also not believed to cause pain or distress to the affected dogs.

Interestingly, while one source states that about two-thirds of dogs will experience what is deemed a spontaneous improvement in the severity or frequency of their tremor episodes, we could only find one retrospective study that found that among dogs with available long-term follow-up, all or most clinical signs had resolved in 67% of cases. Separately, another study in English Bulldogs reported disappearance over time in 50% of cases. Together, these two research papers support that spontaneous improvement or resolution can occur, but not that two-thirds of all dogs with IHTS will necessarily improve. However, it does indicate that sometimes, the episodes may completely resolve over time and without any specific treatment. Of course, this natural tendency for improvement offers some reassurance to guardians, who, like us, deal with this condition, but some dogs may not improve.

1. Genetic Predisposition

Some experts believe that idiopathic head tremors may have a genetic component. Certain breeds, such as Dobermans, Boxers, Bulldogs, and Labrador Retrievers, are more commonly affected by this condition, which may suggest that hereditary factors could play a role. In Dobermans, this theory is supported by research describing a familial early-onset form affecting littermates and tracing affected dogs back to a common sire. However, as is usually the case with genetic predisposition, environmental factors and physiological states (e.g. illness or recovery from illness) may influence whether or when episodes occur.

Moreover, research on Dobermans suggests that the hereditary link may play a role when the onset of idiopathic head tremors occurs before the Doberman’s first birthday. The same research also noted a sporadic form that occurs usually after the dog’s first birthday.

2. (Neurological) Abnormalities

While one case report described a dog with a partial motor seizure that mimicked canine idiopathic head tremor syndrome, and the authors note that CIHTS might be an expression of partial motor epilepsy in some cases, earlier research has suggested that they are most likely not related to epilepsy. For one, dogs are alert and mobile during the episodes, and most do not respond to medications that are traditionally given for seizures.

Limited evidence that exists also seems to support that dogs with classic IHTS are often otherwise neurologically normal on exam, and available testing has not consistently identified a specific structural lesion or epileptic pattern. However, this situation does not mean that the condition cannot be connected to nervous system function.

And while there is currently no concrete evidence pinpointing a specific neurological abnormality, structural lesion, or epileptic mechanism that explains idiopathic head tremors as a whole, there are two theories that have a neurological basis. More precisely they are both motor-control theories.

The first of the two most widely “accepted” theories in conventional veterinary medicine is that idiopathic head tremors may be related to movement disorders originating in the brain's basal ganglia, which is involved in motor control.

The other theory, as Landstra and McDonnell state, posits that an abnormality in the proprioceptive pathways or the stretch mechanism of the head and neck muscles might be responsible. They further state that, “This theory suggests that when the dog’s attention is diverted during an episode, the head tremors temporarily stop because the neck muscles contract, releasing the stretch mechanism that first provoked the tremors​.” If you’re part of a Doberman group online, you will often see the recommendation to snap your Doberman out of the head tremors by offering them a treat. While this might not work for all Dobermans, we can confirm that when Persephone had her head tremors, they did cease with distraction.

3. Diet and Nutritional Imbalances

As you likely already know, diet and nutrition play a crucial role in a dog’s overall health. What you might not know is that nutritional or metabolic imbalances can affect neurological and neuromuscular function. In this regard, deficiencies or excesses in specific nutrients, vitamins, or minerals may contribute to tremors or other neurological signs in some contexts. For example, calcium, magnesium, and B vitamins are involved in muscle and nerve function.

Of course, we are not meaning to say that nutritional imbalances have been shown to cause idiopathic head tremors. However, canine neurology does offer examples where diet appears to influence episodic movement disorders. For example, in Border Terriers with canine epileptoid cramping syndrome, now understood as a paroxysmal movement disorder, clinical signs improved when the dogs went on a gluten-free diet, and relapse occurred in some dogs when gluten was added back into the diet. Similar diet-responsive patterns regarding gluten have also been reported in some dogs of other breeds with paroxysmal dyskinesia, including Maltese dogs. Idiopathic head tremors are not the same condition, but, we believe, these findings make it reasonable to keep nutrition and metabolic state in the broader conversation rather than dismiss them outright.

We understand that reports that nutritional adjustments have helped alleviate head tremors are usually regarded as anecdotal evidence. This is fair criticism insofar as anecdotal reports cannot establish that nutritional imbalances cause idiopathic head tremors. However, nutritional or metabolic factors could still be worth considering as possible contributing factors on frequency or severity in individual dogs, especially when the condition itself remains under-researched and poorly understood.

Interestingly, many arguments against such theories also rely on clinical observation and experience-based pattern recognition rather than strong empirical evidence. Hence, there is potential for bias that can exist on both sides when the evidence base is limited.

4. Immune System Dysfunction

Our veterinarian has mentioned that an overactive or dysregulated immune system may be another potential contributor to idiopathic head tremors. In this vein, immune function and inflammation may also be worth considering in the context of idiopathic head tremors. The immune system and nervous system constantly interact, and systemic inflammation or immune dysregulation can affect neurological function. In a condition whose cause is still unknown, but is possibly connected to nervous system function, we think it is reasonable to ask whether inflammatory load, immune stress, or immune-mediated changes could influence how often tremors occur, how severe they are, or how easily an episode is triggered, at least in some dogs.

Personal note: This theory may align with our experience with Persephone. Given her overall clinical picture, her idiopathic head tremors could have been influenced by immune system challenges that mediate her reactions to vaccinations and dewormers. However, we will discuss more important caveats to draw conclusions from observations later.

5. Environmental Factors and Toxins

Environmental exposures may also be worth considering when discussing idiopathic head tremors, but with quite a few caveats. It is true that pesticides, heavy metals, certain household chemicals, medications, or parasite-control products can affect the nervous system in some contexts; PFAS have also been investigated for potential nervous-system effects, and dogs may be exposed to these agents through their environment, food, water, grooming products, or veterinary products.

Like with other theories, possible role or connection does not mean that these exposures have been shown or ever will show to cause idiopathic head tremors. In fact, veterinarians and neurologists may correctly point out that toxin-related tremors are often not limited to the head and would usually be expected to come with other signs. However, then again, because idiopathic head tremors remain poorly understood, it is still reasonable to ask whether certain exposures could influence the frequency, severity, or threshold of episodes in some dogs.

Our integrative veterinarian has observed that some dogs with idiopathic head tremors appear more sensitive around certain chemical exposures, including some dewormers. This is clinical observation, not proof of causation, but it is also not unreasonable to consider environmental and chemical load as part of the broader picture, especially in dogs whose episodes seem to cluster around specific exposures.

6. Stress and Anxiety

Stress and anxiety are known variables that can have significant impacts on a dog's health, including neurological and immunological function. In the context of idiopathic head tremors, stress is worth considering because some studies and clinical reports have noted possible trigger events around episodes, including stress, illness, surgery, medication, heat, pregnancy, or other changes in the dog’s internal or external environment. As always, these connections do not indicate that stress or anxiety causes idiopathic head tremors. However, if a dog already has a predisposition toward these episodes, stress or discomfort could reasonably be considered as one possible factor that have an influence when episodes occur or how severe they appear.

Personal note: In Persephone’s case, we observed significant signs of stress during her first two rounds of deworming. Unlike our other dogs, she became heavily irritable, had a harder time settling and resting, especially at night, and she became much nippier than usual. We think, this raises a few fair questions: did the deworming product itself influence the onset of the idiopathic head tremors? After all, her breeder did not mention idiopathic head tremors and she received her first ever round of dewormer with us. Did the stress and discomfort around the deworming process influence her threshold for episodes? Did the dewormer influence her immune system somehow? Was her immune system already somehow impacted? Did something in the chain of events trigger inflammatory changes? Or was the timing coincidental and potentially bias in us at play?

However, the repeated experience after giving her a usually considered less tolerable dewormer and the stark worsening of the condition after that may speak against coincidence. While we do not know how or if the dewormer had any influence on her idiopathic head tremors that she had at the time, repeated worsening around the same type of event was something that we did not simply want to ignore. It became a reason to pay more attention to timing, stress load, medication exposure, and recovery patterns.

7. Gastrointestinal Health

There is a growing understanding of the gut-brain axis, highlighting the connection between gastrointestinal health and neurological and immunological function also in dogs. Since a substantial part of the immune system is associated with the gut, imbalances or dysfunctions in the digestive system could impact the nervous and immune system.

Personal note: This theory, in part, resonates with our observations of Persephone's past and sometimes flaring-up gastrointestinal issues and the subsequent improvement in her tremors with dietary and gut health interventions. Then again, correlation does not prove causation. If anything contributed to her head tremors, what’s chicken, what’s egg?

The Importance of Staying Calm

As already stated in the article’s intro, we think staying calm and not panicking about the condition is important. Staying calm is a good idea in two ways. For one, if you stay calm during an episode, your Doberman usually will, as well. Two, with a calm mind, you can make more informed decisions. When you choose to stay calm, you help your dog and yourself.

Thus, the reason we offer these theories is that, we believe, they can provide some valuable insights into potential triggers and contributing factors, not to claim that they are what’s causing idiopathic head tremors in Dobermans. It is our hope that these theories can help you, as a dedicated Doberman guardian, develop more effective management strategies of your Doberman’s overall well-being. While we understand that some veterinarians end the conversation early for a variety of reasons, we think it can be essential to consider a more integrative approach, addressing all aspects of a dog's health, including diet, environment, stress levels, and overall well-being, instead of accepting the often unspoken invitation to just ignore or watch issues.

As the authors of a retrospective observational study mention, “IHTS is a benign condition that frequently resolves spontaneously and is nonresponsive to treatment with a wide range of conventional drugs.The condition is of concern to dog owners, however, and further studies appear warranted to establish its pathogenesis.”

If you are like us, idiopathic head tremors are a concern to Doberman guardians because we love our dogs. Ultimately, even though the tremors themselves may be considered benign, when the condition is under-researched, we don’t simply want to ignore an issue that may or may not be connected to other underlying problems that could affect our Dobermans’ health and wellbeing.

Don’t Skip The Vet

With all that being said, none of what we wrote should prompt you to skip a veterinary evaluation. If your dog is experiencing idiopathic head tremors, consult a knowledgeable veterinarian. Getting a proper diagnosis is crucial. Do not just assume that the head tremors you see are idiopathic head tremors, especially if you see other symptoms. Not every episodic head tremor is truly idiopathic. Some non-idiopathic cases may initially present with tremor alone, which is why any head tremor should be discussed with your veterinarian.

If you don’t want to sit idle with the diagnosis of idiopathic head tremors, consider an appointment with an integrative vet to not only get a diagnosis, but also explore potential influences in your Doberman, and develop a tailored plan for potentially managing the condition instead of treating it merely as a non-event. Of course, we are not trying to suggest that an integrative veterinarian will know the cause of idiopathic head tremors, but at least they may be more inclined to explore the issue, if your current veterinarian has no suggestions.

On a more personal note: Given my, as some call it, unique background, which includes a BS in psychology, radiology, and work in clinical research, I find it important to mention that sometimes people are uncomfortable with the unknown. They want to act to, ultimately, avoid feeling helpless. I truly get it.

After Sir Francis Drake, our first Doberman, died at 11.5 years old, we collectively swung very far away from conventional veterinary medicine for a while. That situation can make you more prone to accept whatever sounds reassuring without employing your spidey senses reliably.

Ultimately, we returned to what I think is the middle-ground paired with scientific skepticism. As such, my recommendation is that exploring theories and testing out some things, such as diet changes, removing environmental toxins, and individualizing medications and vaccinations in collaboration with a veterinarian, is within the limits of thoughtful guardianship.

However, make sure you’re predominantly doing it for your Doberman with common sense and not simply to calm yourself. When the tremors do not resolve, you may become prone to going down the rabbit hole of the pseudoscientific internet, and it’s sometimes outright dangerous advice, sometimes wrapped in words like ‘evidence-based’. Always check the evidence. Don’t just trust because something sounds authoritative or reassuring.

Lastly, I find it worth repeating: Always remember, it is impossible to draw conclusions about causes from anecdotal evidence. As explained, idiopathic head tremors may improve or resolve on their own. As Carl Sagan said, “It pays to keep an open mind, but not so open your brains fall out.”

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Disclaimer: The information provided in this article is for educational and informational purposes only and is not intended as a substitute for advice from your veterinarian or other healthcare professional. You should not use this information to diagnose or treat a health problem or disease or prescribe any medication or other treatment. Always consult with your veterinarian or other qualified healthcare provider before making any changes to your pet's healthcare regimen, especially if they have or suspect they may have a health problem. The author and publisher of this article are not responsible for any adverse effects or consequences resulting from the use of any suggestions, products, or procedures mentioned in this article. The use of this information is at the reader's discretion and risk.

In-Text Linked References

Braund, K. G. (2003, February 6). Neurotoxic disorders. In C. H. Vite (Ed.), Braund’s clinical neurology in small animals: Localization, diagnosis and treatment. IVIS. https://www.ivis.org/library/braunds-clinical-neurology-small-animals-localization-diagnosis-and-treatment/neurotoxic

Cao, Y., & Ng, C. (2021). Absorption, distribution, and toxicity of per- and polyfluoroalkyl substances (PFAS) in the brain: A review. Environmental Science: Processes & Impacts, 23(11), 1623–1640. https://doi.org/10.1039/d1em00228g

Cerda-Gonzalez, S., Packer, R. A., Garosi, L., Lowrie, M., Mandigers, P. J. J., O'Brien, D. P., & Volk, H. A. (2021). International veterinary canine dyskinesia task force ECVN consensus statement: Terminology and classification. Journal of Veterinary Internal Medicine, 35(3), 1218–1230. https://doi.org/10.1111/jvim.16108

Del Treste, A., Sacchettino, L., Costanza, D., Trapanese, L., Salzano, A., Napolitano, F., Cortese, L., d’Angelo, D., Campanile, G., & Greco, A. (2026). Intestinal dysbiosis relating to gut–brain axis and behavior in dogs: A systematic review with text mining approach. Animals, 16(6), Article 986. https://doi.org/10.3390/ani16060986

Guevar, J., De Decker, S., Van Ham, L. M., Fischer, A., & Volk, H. A. (2014). Idiopathic head tremor in English bulldogs. Movement disorders : official journal of the Movement Disorder Society, 29(2), 191–194. https://doi.org/10.1002/mds.25767

Hekman, J. P., Karas, A. Z., & Sharp, C. R. (2014). Psychogenic stress in hospitalized dogs: Cross species comparisons, implications for health care, and the challenges of evaluation. Animals, 4(2), 331–347. https://doi.org/10.3390/ani4020331

Kiełbik, P., & Witkowska-Piłaszewicz, O. (2024). The relationship between canine behavioral disorders and gut microbiome and future therapeutic perspectives. Animals, 14(14), Article 2048. https://doi.org/10.3390/ani14142048

Kritikos, G., Parr, J. M., & Verbrugghe, A. (2017). The role of thiamine and effects of deficiency in dogs and cats. Veterinary Sciences, 4(4), 59. https://doi.org/10.3390/vetsci4040059

Landstra, L., & McDonnell, J. (n.d.). Six questions about idiopathic head tremors. Veterinary Neurology & Imaging of the Chesapeake. Retrieved June 15, 2026, from https://www.vetneurochesapeake.com/vnioc-blog/six-questions-about-idiopathic-head-tremors

Liatis, T., Bhatti, S. F. M., Dyrka, M., Gutierrez-Quintana, R., Goncalves, R., Madden, M., & De Decker, S. (2023). Idiopathic and structural episodic nonintentional head tremor in dogs: 100 cases (2004–2022). Journal of Veterinary Internal Medicine, 37(6), 2301–2309. https://doi.org/10.1111/jvim.16880

Lowrie, M., Garden, O. A., Hadjivassiliou, M., Harvey, R. J., Sanders, D. S., Powell, R., & Garosi, L. (2015). The Clinical and serological effect of a gluten-free diet in border terriers with epileptoid cramping syndrome. Journal of Veterinary Internal Medicine, 29(6), 1564–1568. https://doi.org/10.1111/jvim.13643

MacMillan, K. L. (2003). Neurologic complications following treatment of canine hypoadrenocorticism. The Canadian Veterinary Journal, 44(6), 490–492. https://pmc.ncbi.nlm.nih.gov/articles/PMC340176/

Merck Veterinary Manual. (n.d.). Eclampsia in small animals. Retrieved June 17, 2026, from https://www.merckvetmanual.com/metabolic-disorders/disorders-of-calcium-metabolism/eclampsia-in-small-animals

Merriam-Webster. (n.d.). Idiopathic. In Merriam-Webster.com dictionary. Retrieved June 15, 2026, from https://www.merriam-webster.com/dictionary/idiopathic

Michaels, J. (n.d.). Idiopathic head tremor syndrome. MSPCA-Angell. https://www.mspca.org/clinical/idiopathic-head-tremor-syndrome/

Musteata, M., Ștefănescu, R., Borcea, D. G., & Solcan, G. (2023). Very-low-frequency spike–wave complex partial motor seizure mimicking canine idiopathic head tremor syndrome in a dog. Veterinary Sciences, 10(7), Article 472. https://doi.org/10.3390/vetsci10070472

Polidoro, D., Van Ham, L., Santens, P., Cornelis, I., Charalambous, M., Broeckx, B. J. G., & Bhatti, S. F. M. (2020). Phenotypic characterization of paroxysmal dyskinesia in Maltese dogs. Journal of Veterinary Internal Medicine, 34(4), 1541–1546. https://doi.org/10.1111/jvim.15804

Reardon, C., Murray, K., & Lomax, A. E. (2018). Neuroimmune Communication in Health and Disease. Physiological reviews, 98(4), 2287–2316. https://doi.org/10.1152/physrev.00035.2017

Rogers, C. B., Meyerhoff, N., & Volk, H. A. (2023). Gluten serological testing in various dog breeds with paroxysmal dyskinesia. Frontiers in veterinary science, 10, 1119441. https://doi.org/10.3389/fvets.2023.1119441

Ruth, M. R., & Field, C. J. (2013). The immune modifying effects of amino acids on gut-associated lymphoid tissue. Journal of Animal Science and Biotechnology, 4, Article 27. https://doi.org/10.1186/2049-1891-4-27

Sacoor, C., Marugg, J. D., Lima, N. R., Empadinhas, N., & Montezinho, L. (2024). Gut-brain axis impact on canine anxiety disorders: New challenges for behavioral veterinary medicine. Veterinary Medicine International, 2024, Article 2856759. https://doi.org/10.1155/2024/2856759

Schneider, N., Potschka, H., Reese, S., Wielaender, F., & Fischer, A. (2020). Imepitoin for treatment of idiopathic head tremor syndrome in dogs: A randomized, blinded, placebo-controlled study. Journal of Veterinary Internal Medicine, 34(6), 2571–2581. https://doi.org/10.1111/jvim.15955

Shell, L. G., Berezowski, J., Rishniw, M., Nibblett, B. M., & Kelly, P. (2015). Clinical and breed characteristics of idiopathic head tremor syndrome in 291 dogs: A retrospective study. Veterinary Medicine International, 2015, Article 165463. https://doi.org/10.1155/2015/165463

Sun, Y., Koyama, Y., & Shimada, S. (2022). Inflammation from peripheral organs to the brain: How does systemic inflammation cause neuroinflammation?. Frontiers in Aging Neuroscience, 14, 903455. https://doi.org/10.3389/fnagi.2022.903455

Vitale, S., & Foss, K. (2019). Immune-mediated central nervous system disease-current knowledge and recommendations. Topics in Companion Animal Medicine, 34, 22–29. https://doi.org/10.1053/j.tcam.2018.11.003

Wolf, M., Bruehschwein, A., Sauter-Louis, C., Sewell, A. C., & Fischer, A. (2011). An inherited episodic head tremor syndrome in Doberman pinscher dogs. Movement disorders : Official Journal of the Movement Disorder Society, 26(13), 2381–2386. https://doi.org/10.1002/mds.23936

Article last update: 2026, June