08/04/2025
All of this.
Sensitive Sole Dysregulation Disorder (SSDD):
Why Your Horse Isnât a JerkâHe Just Has Sore Feet đ´đĽ
â ď¸ This is long. Possibly the most important thing youâll read this year about your âfrustratingâ horse. So dig deep and let me transplant some good ideas into your head....
People come to me for all sorts of reasons.
Some are curious about my nerdy, no-nonsense take on horse training.
Some want help building a better relationship with their horse.
And some arrive clinging to the last threads of hope, unsure whether their horse is traumatised, dangerous⌠or they are just not good enough to own a horse đ.
Most of the time, the horse is just confused.
Once we clear up the misunderstanding, lay out a process, and build some real skills, the change is phenomenal.
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Communication improves.
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Confidence blooms.
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Partnerships are born.
Itâs effective.
Itâs beautiful.
It worksâuntil it doesnât.
Because thereâs a subset of horsesâgenuinely lovely horses, with well-meaning, capable humansâwho still struggle.
Not from lack of effort.
Not from uselessness.
Not because the horse is a waste of time.
Itâs because the horse isnât physically in a state to learn.
And the top culprit?
Sore. Bloody. Feet. đŚśđĽ
Which is why Iâm proud (and mildly exasperated) to introduce a term that I believe deserves a permanent spot in the equine lexicon aka lingo:
Sensitive Sole Dysregulation Disorder (SSDD)
A multifactorial, stress-induced hoof spiral that masquerades as a behavioural problemâbut is actually your horseâs way of saying, âHuman, I cannot cope. And what you're asking me to do is bloody uncomfortable and I feel threatened.â
Why We Need a Term Like SSDD
If youâve read my blog on New Home Syndrome, youâll know how powerful naming things can be.
That post gave thousands of horse owners a lightbulb moment:
đĄ âAhâitâs not that my new horse was drugged and sold by an unscrupulous lying horse seller. Heâs just completely unravelling from the stress of relocation.â
Naming gives us a grip on the slippery stuff.
It stops us chasing trauma narratives, mystical contracts, and fantasy horsemanship rabbit holes wasting our time, money, and enjoyment of horses.
It invites clarity.
It invites action.
So letâs do it again.
Because SSDD is real.
Itâs widespread.
And itâs quietly ruining training, relationships, and confidenceâfor both horse and human.
The Official Definition (Because Iâm Nerdy Like That đ)
Sensitive Sole Dysregulation Disorder (SSDD):
A stress-induced, multifactorial syndrome in horses, characterised by systemic dysregulation and poor hoof integrity. It results in chronic sensitivity from inflammation, poor structural balance. It causes altered posture and movement, and unpredictable or defensive behaviourâespecially when the horse is asked to move, load, or engage physically.
Commonly misdiagnosed as poor training, bad temperament, or âbeing crazy, dangerous, or⌠a bit of a dick.â
How It Starts
(And Why Itâs So Sneaky đľď¸ââď¸)
Stressâwhether from relocation, dietary change, social disruption, intense work, poor training, or all of the above and moreâdisrupts the gut.
We talk about ulcers and hindgut issues, but gut disruption reaches much further. It impacts:
- Nervous system regulation
- Nutrient absorption
- Muscle and fascia development
- Sensory processing
- Postural support
- Biomechanics
âĄď¸And yes⌠hoof quality
Systemic inflammation gets triggered, and it ripples to the hooves.
Thin soles.
Inflamed hoof structures.
Suddenly, every step hurts.
And when all four feet hurt at once?
Thereâs no limp.
No giveaway unless you know what to look for.
Just a horse who suddenly doesnât want to:
đŤ Go forward
đŤ Bend
đŤ Load
đŤ Be caught
đŤ Be mounted
đŤ Leave its friends
đŤ âTrust youâ
đŤ âConnectâ
From the outside, it looks like resistance and unpredictability.
But inside?
Itâs one long, silent âOuch.â
And just because they run, buck and gallop in the paddock does not mean it isnât festering away.
Case Study: The Off-The-Track Time Bomb đ§¨
Meet the OTTB.
Heâs fresh off the track with the emotional resilience of a sleep-deprived uni student living off Red Bull and vending machine snacks.
His microbiome is wrecked.
His feet are full of nail holes.
His hooves are thin and genetically fragile.
Hoof balance and form has been considered for the next raceânot the next 20 years.
And someoneâs just pulled his shoes in the name of âletting down naturally.â đ
Cue: SSDD.
Now heâs bolting, spinning, rearing, planting, or shutting down.
The forums recommend groundwork, magnesium, a different noseband, an animal communicator, or an MRI for a brain tumour.
The horsemanship world says âmove his feet.â
The trauma-informed crowd say âget his consent.â
Kevin at the feed store says âget his respect.â
But nothing changes.
Because itâs not a behaviour issue.
Itâs a hoofâgutânervous systemâbiomechanical spiral.
And until you break the cycle, no amount of connection, compassion, or carrot sticks will touch it.
What SSDD Looks Like:
đš Short, choppy strides
đš Hesitation on gravel
đš Tension through the back and neck
đš Braced posture, dropped belly, collapsed topline
đš Popping hamstrings
đš Loss of bend, swing, or rhythm
đš Explosions without warning
đš Refusal to leave the paddock
đš Sudden regression in training
đš Being labelled a âdick,â âbitch,â âjerk,â or ânutcaseâ
Imagine removing your shoes.
Now walk barefoot over gravel, or Lego hidden in shag-pile carpet đ§ą
Add a backpack.
Now have someone control where you have to move and how fast.
Now smile, be polite, and do what youâre told.
Sound like trust and connection to you?
Thatâs SSDD.
Letâs Be Clear đĄ
This isnât an anti-barefoot rant.
And itâs not a pro-shoes crusade.
Itâs about recognising that stress undermines hoof qualityâŚ
And compromised hooves undermine everything else.
Hoof pain is a master dysregulator.
It breaks posture.
Fractures movement.
Feeds stress.
Causes breakdown.
Blocks learning.
And itâs hard to seeâespecially when you think your horse is acting like an idiot.
What To Do (Especially for OTTBs, STBs, and New Arrivals)
â
Be strategic.
â
Be clinical.
â
Be kind.
- Replace shoes or hoof protection, donât rip off shoes on Day One.
- Support the gut from the start.
- Prioritise routine, rest, and recovery.
- Make sure theyâre sleepingâproperly.
- Work with a hoof care pro who understands stress transitions.
- Wait before reassessing shoeing choices.
- Stop mistaking pain for personality.
- Choose insight over ideology.
- Choose systems thinking over magic silver bullets.
Why It Matters
When we name SSDD, we stop blaming horses for not coping.
We stop shaming owners.
We stop spiralling into horsemanship cults where stillness is the only sign of success.
We start looking at the actual horse.
In the actual body.
With actual problems.
Because sometimes, itâs not temperament.
Itâs not training.
Itâs just a hoofâ
Tender, tired, inflamedâ
Whispering softly:
âI canât cope.â
A hoof that needs support and protection.
đ¸ IMAGE TO BURN INTO YOUR MEMORY BANKS
Study it.
See the posture searching for comfort?
The tension lines?
The zoned out face that says âpainâ?
The weird stance?
Thatâs SSDD at a standstill.
Even if you canât see it yetâplease consider it.
I mightâve made up the nameâŚ
But the thing itself is very, very real.
Just like New Home Syndrome, SSDD deserves its own hashtag.
Okay fineâ is a bit long.
Letâs go with:
If This Blog Made You ThinkâPlease Share It đ
But please donât copy and paste chunks and pretend you wrote them.
Thereâs a share button. Use it.
Be cool. Give credit. Spread the word.
Because if this made you stop and wonder whether your horse isnât being difficultâbut is actually sore, stressed, and stuck in a spiralâ
That moment of reflection could be the turning point that changes everything.
Weâve just released our Racehorse to Riding Horse â Off the Track Reboot course, plus other clear, practical resources to help you understand OTTBs & OTTSTBs and support these incredible horses, as they are more prone to this than most.
Because with the right information, what feels impossibleâŚ
Can become totally achievable. đâ¨
Iâll pop some references in the comments.