Colic in Horses: Recognition and Emergency Response

Last updated: May 29, 2026

Of every health crisis a horse can face, none demands faster action than abdominal pain. Colic in horses is not a single disease but a catch-all term for belly pain, and it is the leading medical killer of horses worldwide. A horse cannot vomit, its digestive tract is long and prone to twisting, and a problem that looks mild at dawn can become life-threatening by noon. Knowing the signs of colic in horses, acting without delay, and understanding when a case is surgical versus medical can be the difference between a recovered horse and a tragedy.

This guide is written for the everyday owner, not the veterinarian. The single most important thing to take from it is simple: when you suspect colic, you call your equine veterinarian right away. The American Association of Equine Practitioners (AAEP) treats colic as the emergency that defines responsible horse ownership, and so should you.

What Colic Actually Is

The word “colic” simply means pain in the abdomen. It tells you the horse hurts but not why. The horse’s gut is built for trickle-feeding small amounts of forage almost constantly, and its long intestine makes several sharp turns and floats loosely in the abdomen. That anatomy is wonderful for digesting grass and terrible for tolerating disruption.

Common types of colic include:

• Gas (spasmodic) colic — gas builds up and stretches the bowel, causing cramping pain. Often the mildest and most common form.
• Impaction colic — dry, firm feed material blocks the intestine, frequently at natural narrowings. Linked to dehydration, poor dental health, and sudden feed changes.
• Sand colic — ingested sand or grit irritates and blocks the gut, common where horses eat off bare, sandy ground.
• Displacement colic — a section of intestine moves out of its normal position and may trap gas or feed.
• Torsion (volvulus) colic — the intestine twists on itself, cutting off blood supply. This is the most dangerous form and almost always surgical.

You will not be able to tell these types apart from the outside, and you should not try to. Your job is recognition and rapid response. Diagnosis belongs to the vet.

It helps to understand why this matters so much. Unlike a dog or a person, a horse cannot vomit — a strong muscular valve at the stomach entrance makes it nearly impossible. That means anything that goes wrong in the gut cannot be relieved by throwing up; pressure and pain build until the problem is treated. Combined with that long, loosely suspended intestine, the horse is uniquely vulnerable to abdominal crises, and what starts as mild discomfort can escalate into a true surgical emergency in a matter of hours. This is the core reason colic in horses is taken so seriously by every experienced owner and veterinarian.

Recognizing the Signs of Colic in Horses

Most horses give clear warnings when their belly hurts. Learn these signs and check your horse against them anytime something seems off. Classic signs of colic in horses include:

• Pawing at the ground repeatedly or restlessly
• Looking, nipping, or kicking at the flank or belly
• Rolling, or repeatedly lying down and getting up
• Stretching out as if to urinate without producing urine
• No manure in the stall or far less than normal
• Loss of appetite and ignoring hay or treats
• Sweating, elevated heart rate, or rapid breathing
• Lip curling, groaning, or a generally distressed posture

One of the most telling assessments your vet will ask about is gut sounds. A healthy gut gurgles and rumbles. A quiet, silent abdomen — no gut sounds — is a red flag that the intestine has stopped moving. If you have a stethoscope and know how to listen, note what you hear; if not, simply press your ear to the flank and report what you find.

Severity is not always obvious. A horse standing quietly but off its feed with no manure can be just as serious as one rolling violently. When in doubt, treat it as colic and call.

What to Do in the First Ten Minutes

The moment you suspect colic, your response matters enormously. Stay calm and work through these steps:

1. Call your equine veterinarian immediately. Describe the signs, when they started, and any changes you have noticed. Do not wait to “see if it passes.” Early cases are far more treatable and far cheaper to treat.
2. Remove all food. Take away hay and grain so the gut is not asked to handle more while it is struggling.
3. Note vital signs if you can. A horse’s normal temperature is roughly 99 to 101 degrees Fahrenheit, resting heart rate around 28 to 44 beats per minute, and breathing around 8 to 16 breaths per minute. Rising heart rate often signals worsening pain.
4. Check for manure and note the last time the horse passed it, ate, and drank.
5. Keep the horse safe. Prevent violent rolling near fences or in tight spaces where it could injure itself or get cast.

Do not give any medication on your own. NSAIDs such as flunixin (Banamine) and phenylbutazone (bute) can mask pain and dangerously hide a deteriorating, surgical case from your vet. These drugs are powerful and can harm the gut and kidneys if misused. Never administer them without your veterinarian’s direct instruction. Knowing the broader signals of a true crisis is covered well in our guide on when to call the equine vet for emergency signs.

The Walking Debate: To Walk or Not to Walk

Old barn wisdom says to walk a colicking horse, and it is one of the most misunderstood pieces of advice in horse care. The truth is more measured. Gentle hand-walking can be helpful because it can encourage gut motility, distract a horse from rolling, and keep it from injuring itself. Walking does not, however, “cure” colic, and it should never replace calling the vet.

Walk only if the horse is calm enough to do so safely. If a horse is determined to throw itself down and roll violently, forcing it to walk endlessly can exhaust both of you and risks injury. Let a horse that wants to stand quietly stand. The fear that rolling causes the intestine to twist is largely a myth — a twist usually causes the rolling, not the other way around. Walk for comfort and safety, not as treatment, and stop the moment your vet arrives or advises otherwise.

Surgical Versus Medical Colic

The overwhelming majority of colic cases — roughly 80 to 90 percent — resolve with medical treatment on the farm: pain relief, fluids, and sometimes a tube passed into the stomach to deliver fluids and mineral oil. These are the gas and simple impaction cases caught early.

A minority of cases are surgical. When the intestine is twisted, displaced badly, or its blood supply is cut off, only surgery can save the horse, and it must happen fast. Your vet decides this based on pain that will not respond to medication, a rapidly rising heart rate, the findings on a rectal exam, and the results of passing a stomach tube. If surgery is recommended, the horse must travel to an equine hospital, often quickly.

This is where honesty matters. Colic surgery is major abdominal surgery and is expensive — commonly $5,000 to $15,000 or more, depending on region, the complexity of the case, and recovery (costs vary by region and are current as of 2024 to 2025). Many owners cannot pay this out of pocket on short notice, which is why having an emergency plan in place before a crisis is part of responsible ownership. Reviewing an emergency fund versus pet insurance decision long before colic strikes can spare you an impossible choice in a parking lot at 2 a.m.

Why Prevention Beats Treatment

You cannot prevent every case of colic in horses, but you can dramatically reduce the risk. The largest preventable triggers come back to feeding and water. Sudden changes in diet, grain overload, moldy hay, dehydration, and lack of consistent forage all set the gut up for trouble.

Practical prevention includes:

• Make all feed changes gradually over 7 to 14 days, including switching hay batches.
• Provide constant forage. A gut designed to graze does best with hay or pasture available most of the day.
• Ensure clean water at all times. Water intake often drops in winter, raising impaction risk; heated waterers help.
• Keep up dental care and deworming so feed is chewed and processed properly.
• Limit feeding on sandy ground and use mats or feeders.

The feeding side of prevention is detailed in our companion article on feeding mistakes that cause colic, which is essential reading for anyone managing a horse’s diet.

Building a Colic Response Plan

Every barn should have a written colic plan posted where everyone can see it. It should include your equine vet’s phone number, the nearest equine surgical hospital and its number, directions, and the name and contact of someone with a truck and trailer who can haul on short notice. Knowing in advance how an emergency fits into the broader picture of urgent care is worth thinking through using our emergency, urgent, and primary care decision matrix.

Colic does not wait for business hours, and panic wastes precious minutes. A plan turns a frightening event into a sequence of clear actions. The owners who lose horses to colic are rarely the ones who were prepared — they are the ones who hesitated, hoped, or did not know who to call.

It is also worth talking through the difficult decisions in advance, before you are standing in a barn at midnight with a horse in pain. Decide how you feel about colic surgery for your particular horse given its age, value to you, and your finances, and discuss it honestly with your family and your vet. There is no shame in choosing humane euthanasia over a surgery you cannot afford or that offers a poor prognosis for an older horse — that, too, is a responsible, compassionate choice. What matters is that the decision is thought through calmly beforehand rather than made in panic. Good preparation is not pessimism; it is the kindest gift you can give a horse you may one day have to make a fast decision for.

Frequently Asked Questions

How quickly can colic in horses become life-threatening?

It varies by type. A gas colic may resolve in hours, while a twisted intestine can become fatal within a few hours if not treated surgically. Because you cannot tell which you are dealing with, every case warrants an immediate call to your vet. Treating early is both safer and far less expensive.

Should I give my horse Banamine or bute if it is colicking?

Not without your veterinarian’s explicit instruction. These NSAIDs can mask pain and hide a worsening surgical case, and they carry real risks to the gut and kidneys. Your vet may direct you to administer medication while they travel, but that decision is theirs to make over the phone, not yours to guess.

Is it safe to let a colicking horse roll?

You should prevent violent, dangerous rolling that risks injury or getting cast against a wall, but the long-held belief that rolling itself causes a twist is mostly a myth. A horse usually rolls because the intestine has already twisted. Keep the horse safe and call your vet rather than wrestling it endlessly.

How much does colic surgery cost?

Commonly $5,000 to $15,000 or more, depending on the complexity of the case, the hospital, and recovery needs (costs vary by region and are current as of 2024 to 2025). This is exactly why setting up an emergency fund or insurance before a crisis is a core part of horse ownership.

Can I do anything to prevent colic?

Yes. Make feed changes slowly, provide constant forage and clean water, keep up dental care and parasite control, and avoid feeding on sand. Many colic cases trace back to sudden diet changes or dehydration, both of which are within your control. Prevention is far more reliable than treatment.