Behaviour problems · 30 September 2026
Horse bites: what it is really telling you
A horse that bites is rarely mean-spirited. A bite is the last step after signals nobody noticed, and behind it there is usually one of four causes: pain, fear, hand-feeding or testing boundaries. The solution is therefore not punishment, but recognising the cause and reacting earlier, while the horse is still only warning.
In this article I explain how I tell the causes apart, which mistakes I see most often and how I worked with a horse that had been biting during saddling for six months.
Why a horse bites: four causes
The same bite can have four different reasons, and each requires a different starting point. I tell them apart by the body language immediately before the bite.
- Pain. The reaction comes to a very specific touch, to the pressure of the girth or the saddle. The body is tense and the look worried.
- Fear. The horse bites in defence because it feels cornered. Its head is high, breathing shallow and the eye tense.
- Hand-feeding. The horse constantly sniffs, pushes and nibbles with its lips, without aggressive body language. It has learned that hands mean food.
- Testing boundaries. The horse calmly and deliberately enters your space to check who moves whom.
When to call the vet first
Pain cannot be solved with training, so it must be ruled out first. I send the owner to the vet before we start working in three cases.
- Violent reaction to touching the belly and back. Possible causes are gastric ulcers, a sore back or a saddle that does not fit.
- Biting when the headcollar and bit are put on. Then the teeth and mouth need to be examined.
- A sudden change in behaviour. If the horse used to be calm and suddenly bites, something has changed in its body or environment.
The most common owner mistakes
The three reactions I see most often do not stop biting — they reinforce it.
- Hitting the nose or muzzle. This teaches the horse to bite faster and without warning, and the blow triggers a defensive reaction.
- Treats while the horse sniffs your pockets. You are rewarding exactly the pushing of its head into your space.
- Ignoring the early signals. Anyone who reacts only when the horse already tries to bite has missed the moment when everything could still have been solved calmly.
A case from practice: six months of biting during saddling
A seven-year-old warmblood gelding had been biting for six months. It happened during saddling, tightening the girth, grooming around the belly and whenever a person walked through the box.
Before every bite the horse warned clearly: ears pinned back, stiff neck, tight upper lip and nervous tail swishing. The owner responded by backing away, shouting or slapping its muzzle.
That created a game of who is faster, and tension grew on both sides. We solved it in four visits over five weeks, in three steps.
The three steps I use to solve biting
I move to the next step only when the horse shows it is ready.
1. Personal space boundaries from the ground
First I set clear personal space boundaries from the ground, calmly and without punishment. When the horse enters my space, I ask it to move away and release as soon as it does.
Sign to move on: the horse keeps the distance by itself and relaxes its neck when I ask for space.
2. Touching the sensitive areas
Then we worked on touching the places it reacted to, rewarding calmness. The reward is release and a pause, not food from the hand.
Sign to move on: a soft eye, lowered head and chewing, without turning the teeth towards the person.
3. A new saddling routine
Finally we changed the saddling routine. The girth is tightened gradually, hole by hole, with a pause in between.
Sign to finish: complete calm, a relaxed back and breathing without signs of resistance.
How long it takes and what the owner does
This horse needed four visits over five weeks. Biting that has lasted for months changes over weeks, not days.
The owner did the larger part of the work between sessions:
- stopped hand-feeding completely
- minded the personal space every day
- saddled slowly, the same way every time
Without that, the horse returns to the old behaviour between two visits, because every day it learns what it experiences every day.
Frequently asked questions
How do I recognise that a horse is about to bite?
It almost always warns before biting. Watch for ears pinned back, a stiff neck, a tight upper lip and nervous tail swishing. That is the moment to react, not the bite itself.
May I hit the horse when it bites me?
No. Hitting the muzzle teaches the horse to bite faster and to skip the warning. Instead, calmly ask for space and release as soon as it moves away.
May I give the horse treats from my hand?
Not to a horse that bites or nibbles. Until the behaviour changes, hand-feeding should be stopped completely, because for the horse hands mean food.
Need help with a horse that bites?
For work on demanding and unsafe situations with your horse, contact me at ridewithtomch@gmail.com or +385 99 2475 652. I come to you, in Zagreb and the surrounding area, and further afield by agreement.
By Tomislav Marčenić, horse trainer — Zagreb, Croatia and the region.