Horse Care Finder
Health & Emergencies 5 Min Read August 27, 2026

How to Tell If a Horse Is in Pain

Close-up of a brown horse with a white forehead marking

Horses are prey animals. Concealing weakness is instinct, which means the horse showing obvious pain has usually been uncomfortable for a while.

The face tells you first

Learn to read tension: ears held back or stiffly sideways, tightening above the eye, a strained muzzle, flared nostrils, a clenched jaw. Researchers have formalised this as the horse grimace scale, and it is worth learning properly.

The behavioural signs

  • Reluctance to be caught, groomed or girthed.
  • New resistance under saddle, particularly on one rein.
  • Standing apart from the herd, or unusual lying down.
  • Reduced appetite, or eating more slowly than usual.
  • Shifting weight, pointing a foot, or a reluctance to turn tightly.

Naughty is usually sore

A horse that has become difficult is far more often in pain than in a mood. Before you reach for a training solution, rule out the physical one. Saddle fit, teeth, feet and back are the usual suspects, and a vet is the right place to start.

What to check before you call

A few minutes of observation makes the phone call far more useful. Take the temperature, which normally sits around 99 to 101 degrees Fahrenheit. Count respiration at rest. Feel for a digital pulse at the fetlock, because a pulse you can feel strongly, especially in both front feet, matters. Check whether the horse has passed manure and whether the water level has dropped. Look at the gums: pale pink and moist, with colour returning within about two seconds after you press.

What to tell the vet

Describe change rather than diagnosis. When you last saw the horse normal, what is different now, whether it is worsening and how quickly, plus the numbers above. Saying the horse is off starts a slow conversation. Saying he was fine at six, he is pawing and looking at his flank now, temperature normal, no manure since morning, starts a fast one.

The things that will not wait

  • Violent or rolling colic signs, or a horse that will not stay standing.
  • Severe lameness that appeared suddenly, particularly with heat and a strong digital pulse.
  • Any wound near a joint, or bleeding that does not slow with pressure.
  • Choke, or any difficulty breathing.
  • An eye that is closed, weeping or cloudy. Eyes deteriorate fast.

Frequently asked questions

Can horses hide pain?

Yes, and they are good at it. As prey animals they mask weakness. Subtle behavioural change is often the only early sign.

What is the horse grimace scale?

A research-backed method of reading facial tension — ears, eyes, muzzle, nostrils — to assess pain. It is genuinely useful once you learn it.

Is a change in behaviour always pain?

Not always, but it is the first thing to rule out. Sourness under saddle is more often physical than attitudinal.

When do I call the vet?

If you see acute signs, or a subtle change that persists more than a day or two. Describing what is different is enough to start the conversation.

General information only. Horse Care Finder provides practical, educational guides for horse owners. This content is not a substitute for professional veterinary, medical, legal or other qualified advice. Any prices shown are general estimates that vary by location, provider and circumstances. See our Editorial Policy and Disclaimer.

Frequently Asked Questions

Can horses hide pain?

Yes, and they are good at it. As prey animals they mask weakness. Subtle behavioural change is often the only early sign.

What is the horse grimace scale?

A research-backed method of reading facial tension — ears, eyes, muzzle, nostrils — to assess pain. It is genuinely useful once you learn it.

Is a change in behaviour always pain?

Not always, but it is the first thing to rule out. Sourness under saddle is more often physical than attitudinal.

When do I call the vet?

If you see acute signs, or a subtle change that persists more than a day or two. Describing what is different is enough to start the conversation.