Is Your Dog’s Collar Silently Hurting Them? What Every Dog Owner Needs to Know

There is something most dog owners do every single day without a second thought clipping a collar around their dog’s neck before a walk. It is so routine, so normal, so universally accepted that questioning it feels almost strange. But what if that one small habit was quietly causing harm? A 2025 study confirmed what holistic practitioners have been observing for years that the pressure placed on a dog’s neck by a collar during walks, pulling, or even just wearing it daily, can cause significant soft tissue and nerve damage.

And the connection between chronic neck and spinal nerve damage and serious long-term health conditions including increased cancer risk — is now supported by evidence. This is not cause for panic. It is cause for one simple, immediate change.

What the research shows:

The neck is one of the most neurologically complex and vulnerable areas of a dog’s body. It houses the cervical spine, the vagus nerve, major blood vessels, the thyroid gland, lymph nodes and a dense network of nerves that connect directly to the rest of the body’s organ systems. When pressure is applied to this area, through pulling on a leash, sudden jerking, or even the constant low-level pressure of a collar resting against the neck the consequences extend far beyond the neck itself.

Compression of the cervical vertebrae affects nerve signalling throughout the body. Pressure on the thyroid gland connect to conditions including thyroid dysfunction. Restriction of blood and lymph flow affects immune function. Chronic nerve irritation creates a state of low-grade inflammation that, over time, contributes to systemic health breakdown.

Dr Peter Dobias, a holistic veterinarian who has been documenting the patterns between neck injuries and serious disease for over two decades, has observed consistent correlations between collar use and conditions including thyroid disease, ear and eye problems, front leg lameness and most significantly, cancer.

The 2025 research he references has given scientific grounding to what holistic observation had been showing for years. In my own holistic practice I have worked with dogs presenting with sudden onset allergies, unexplained incontinence, chronic skin conditions and recurring ear infections all wearing collars daily and going for regular walks on lead. While I cannot draw a direct causal line in each case, the pattern is consistent with what the research describes. When the nervous system is chronically irritated, the body’s ability to regulate itself including immune function is compromised.

The simple solution:

switch to a harness. The good news, as Dr Dobias notes, is that unlike so many health risks dogs face, this one has a clear, immediate and affordable solution. You do not need a prescription, a diagnosis or a specialist appointment. You just need a harness. A well-fitted harness distributes the pressure of lead tension across the chest and shoulders areas that are far better equipped anatomically to handle that load and completely removes pressure from the vulnerable neck and cervical spine.

When choosing a harness there are a few important things to look for:

Freedom of movement is non-negotiable. The harness should allow your dog’s shoulders and front legs to move completely freely without restriction. A harness that clips across the chest in a way that interferes with the natural gait can cause its own problems over time — shoulder strain, altered movement patterns and muscle tension. Proper fit matters enormously. A harness that is too loose will rub and chafe.

One that is too tight will restrict movement and breathing. You should be able to fit two fingers comfortably under any strap. Back-clip versus front-clip designs each have their place. Back-clip harnesses are excellent for calm walkers. Front-clip harnesses provide more steering control for dogs who pull — but ensure the clip placement does not restrict shoulder movement. Avoid harnesses with tight chest straps that cross directly over the point of the shoulder — this is the most common design flaw and the most likely to cause restriction.

What about dogs who already wear collars — is the damage done?

Not necessarily. The body has a remarkable capacity to heal when the source of chronic irritation is removed and nutritional support is provided. If your dog has been wearing a collar for years the most impactful thing you can do right now is switch to a harness for all walks and on-lead activity. Many dogs do well with a flat collar for ID tag purposes only worn loosely and not attached to a lead. Nutritional support for the nervous system and spine includes omega-3 fatty acids from oily fish. Sardines and Salmon which reduce neurological inflammation. Magnesium supports nerve and muscle function.

High quality protein provides the building blocks for tissue repair. A species-appropriate BARF diet that reduces systemic inflammation gives the body the best possible foundation for recovery.

For essential oil support:

Frankincense is one of the most powerful oils for reducing neurological inflammation and supporting cellular health. Copaiba works through the endocannabinoid system and provides deep anti-inflammatory support at a cellular level. Balance blend supports the nervous system and emotional regulation particularly valuable for dogs who have developed anxiety or hyper-reactivity as a result of chronic discomfort.

All doTERRA CPTG oils should always be appropriately diluted for dogs. For dogs showing symptoms that may be related to chronic collar use sudden allergies, skin conditions, incontinence, ear or eye problems, unexplained lameness a holistic nutritional assessment can help identify whether nutritional gaps or inflammatory diet are contributing to the picture and build a targeted recovery plan.

A note on choke chains, prong collars and slip leads:

If the research on standard flat collars is concerning, the implications for aversive collar devices are significantly more serious. Choke chains, prong collars and slip leads that tighten under tension apply concentrated, acute pressure to exactly the same vulnerable structures described above — with far greater force. From a holistic perspective these devices are incompatible with the goal of a healthy, well-functioning nervous system. They have no place in force-free, health-conscious dog handling.

The one change that costs almost nothing:

In a world where pet health advice is often complicated, expensive or conflicting this is refreshingly simple. Switch to a harness. Choose one that allows full freedom of movement. Ensure it fits correctly. And give your dog’s neck the freedom it was never designed to give up. Your dog cannot tell you their neck hurts. They cannot tell you the constant low-level pressure is affecting their nervous system.

They just keep walking beside you, trusting that the choices you make for them are the right ones. Now you know. And now you can make the change.

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Jolandie Koen is a certified Holistic Animal Practitioner, Pet Nutritionist and Animal Aromatherapy Specialist. The Holistic Pet platform offers species-specific nutrition tools, expert articles and personalized consultations for dogs, cats, parrots, rabbits, poultry