Pawing, rolling, refusing feed, and reduced manure output are the clearest signs of colic and need an urgent vet call. Less urgent but still important signs include coughing, nasal discharge, lameness, and sudden behavior changes.
Colic Signs — Treat as Urgent
Colic covers a range of abdominal pain causes, from mild gas to serious blockages, and it’s the leading cause of equine emergencies. Watch for pawing at the ground, repeatedly looking at or biting the flank, lying down and getting up repeatedly, sweating without exertion, and reduced or absent manure. Call a vet immediately rather than waiting to see if it passes.
Lameness
A shortened stride, head-bobbing at the trot, or reluctance to bear weight on a leg signals pain, most often from a hoof abscess, joint issue, or soft tissue injury. Heat or swelling in a leg is worth checking daily during recovery.
Respiratory Symptoms
A persistent cough, thick nasal discharge, or labored breathing can point to a respiratory infection or, in older horses, equine asthma (previously called heaves). These symptoms are worth a vet visit rather than home monitoring alone.
Appetite and Behavior Changes
A horse that suddenly stops finishing meals, becomes unusually withdrawn or unusually agitated, or changes its normal social behavior with herdmates is often signaling discomfort even without an obvious physical symptom.
For the full routine care schedule that helps catch issues early, see our Horses Health & Wellness Guide.
Vital Signs Worth Knowing
A healthy adult horse typically has a resting heart rate of 28-44 beats per minute, respiratory rate of 10-24 breaths per minute, and temperature of 99-101.5°F. Learning to take these yourself (a stethoscope or even a watch and careful observation work) gives you an objective baseline to compare against when something seems off, rather than relying on gut feeling alone.
Behavioral Changes Matter as Much as Physical Ones
A normally social horse standing alone and disengaged, a good eater suddenly picking at food, or a horse that’s unusually reluctant to move can all be early illness signals before more obvious physical symptoms appear. Horses are prey animals and instinctively mask pain and weakness, which is exactly why subtle behavioral shifts deserve attention rather than being dismissed.
Manure and Appetite as Daily Health Checks
Normal manure output, consistency, and appetite are three of the easiest daily health indicators available to any owner. A horse that goes off feed, produces noticeably less manure, or shows changes in manure consistency warrants closer monitoring, since these are often among the earliest signs of colic or digestive upset.
When to Call the Vet Immediately
Repeated rolling or pawing paired with disinterest in food, visible lameness that doesn’t improve with rest, labored breathing, or a temperature outside the normal range are all reasons to call your vet the same day, not wait and see. With horses, early intervention on colic and respiratory issues in particular meaningfully changes outcomes.
Using a Baseline to Spot Changes
Knowing your individual horse’s normal resting heart rate, gum color (should be pink, with capillary refill under 2 seconds when you press and release), and typical behavior patterns makes it far easier to recognize when something’s genuinely off, versus assuming based on general horse knowledge alone. Every horse has its own normal.
Gut Sounds — A Simple At-Home Check
Pressing an ear or stethoscope to a horse’s flank should reveal gurgling gut sounds; silence or unusually loud, frequent sounds can both signal digestive trouble. This is a skill worth learning early, before you need it in an actual emergency situation.
Skin Tent Test for Dehydration
Gently pinching a fold of skin on the neck and releasing it should see the skin snap back immediately in a well-hydrated horse; skin that stays tented briefly suggests dehydration, worth checking especially in hot weather or if a horse has been sweating heavily or eating/drinking less than usual.
Don’t Wait to Call If In Doubt
Vets consistently say they’d rather get a call about something that turns out to be minor than get a late call about something that’s become an emergency. A quick phone description of what you’re seeing costs nothing and often resolves uncertainty fast — trust that instinct rather than talking yourself out of the call.
FAQ
Colic signs — pawing, rolling, looking at the flank, refusing food — are the most urgent and should never be treated as wait-and-see.
Yes, as prey animals horses often mask pain longer than dogs or cats, which is why subtle changes in appetite or behavior deserve attention.
Not always, but any horse skipping a meal entirely, especially combined with other symptoms, warrants a closer look and often a vet call.
