Winter Colic: Why It Spikes, How to Prevent It, and What To Do If It Happens

Colic is not a single disease. It’s a broad term for abdominal pain that can range from mild gas discomfort to a surgical emergency. Winter is a time when colic cases tend to climb, and for good reason: cold snaps change how horses eat, drink, and move. For owners in Oklahoma, where one blue-skied day can turn to ice the next, paying attention to water, forage, and routine can prevent a scary midnight call—and speed help if one is needed.

Why Winter Raises Colic Risk

Reduced water intake. Horses drink less when water is icy or hard to access. Even a modest drop in intake dries the gut contents and sets the stage for impaction colic. Horses prefer lukewarm water; keeping tanks ice-free and palatable matters.

Diet shifts. Winter often means a move from fresh pasture to more hay and, on some ranches, added grain. Forage changes alter moisture content in the manure and the way feed moves through the hindgut. Abrupt diet changes and drier rations can increase colic risk. Transition feed gradually and favor consistent forage.

Less movement. Ice, mud, or pen rest can cut turnout and routine exercise. Movement is a natural driver of gut motility. When horses stand more and walk less, the intestinal tract can slow, especially if they are also drinking less and eating a different hay.

Management hiccups during cold snaps. Frozen hydrants, unfamiliar hauled water, and changes in feeding locations are common Oklahoma winter headaches. Even small shifts—a different water source taste, moving hay from pasture to a sandy lot, or a sudden jump in concentrate to “keep weight on”—can add up to trouble.

Other contributors. Dental issues, heavy parasite loads, and sand ingestion (if feeding on bare, sandy ground) don’t take a holiday in winter and can compound risk. Keep those basics current year-round.

Prevention You Can Put to Work Now

Make water easy and appealing.

Keep every trough and bucket ice-free and clean. Aim for palatable, lukewarm water—many horses drink more when water is 40–65°F. Drop-in heaters, insulated tanks, and protected cords are simple investments that pay off. Check twice a day, more often in a deep freeze.

Salt to drive thirst.

Provide plain, loose salt or a white salt block at all times. Most horses won’t overdo it, and a little extra sodium helps stimulate drinking in cold weather. If your vet approves, adding a small amount of loose salt to feed during cold snaps can help.

Keep forage consistent and high quality.

Choose a clean, mold-free hay and stick with it. If you must change hay, blend the new with the old over 7–10 days. For easy keepers or older horses with marginal water intake, soaking hay or offering a soaked beet pulp mash can add moisture to the diet.

Go slow with concentrates.

Avoid big jumps in grain to “warm them up.” If extra calories are necessary for body condition, increase gradually and split into several small meals. Sudden concentrate increases are a recognized colic risk.

Encourage movement.

Turnout is your friend. Even a few hours of relaxed walking in a paddock helps gut motility. If weather limits turnout, add hand-walking or controlled exercise on safe footing.

Feed off the sand and keep lots clean.

Use mats, feeders, or sacrifice areas with footing to reduce sand ingestion. Sand burdens can smolder all winter and show up as colic when drinking drops.

Stay on top of dental and deworming.

Poor chewing leads to larger, drier feed particles and impaction. Keep up with dental checks. Follow your veterinarian’s parasite control plan; a winter larval “bloom” in some situations can add risk.

Mind routine.

Horses thrive on predictable schedules. Keep feeding and turnout times steady, even when the weather is ugly. If your water source changes—say you’re hauling water—some horses drink less until they accept the new taste. Monitor intake closely in those periods.

Know the early signs.

Pawing, looking at the flank, getting up and down repeatedly, reduced interest in feed or water, less manure, loose or very dry manure, reduced or absent gut sounds, sweating, elevated heart rate, abnormal gum color, or depression are red flags. Treat any abnormal behavior as a warning sign.

If You Think Your Horse Is Colicking: A Step-by-Step Plan

1) Call your veterinarian immediately.

Do not “wait and see” through a winter night. Many colics are time-sensitive, and early treatment is often simpler and less costly. While you wait, gather useful information.

2) Do a quick, safe basic check.

Note attitude and pain level. Count heart rate and respiration, take a rectal temperature if it’s safe, listen for gut sounds, and look at gum color and moisture. Share these findings with your vet; they help triage the case over the phone. If the horse is in severe pain or thrashing, prioritize safety and keep them from injuring themselves until help arrives.

3) Remove feed.

Pull hay and grain. You can offer small sips of clean, lukewarm water unless your veterinarian advises otherwise.

4) Walk, don’t work.

Light hand-walking can reduce rolling and may stimulate motility for very mild gas colic, but never exhaust a painful horse or “work it out.” If walking increases distress, stop and wait for your vet’s instructions.

5) Keep them warm and safe.

Wet or shivering horses burn energy and may drink less. Use a dry blanket if the horse is cold or wet and standing quietly. Avoid deep bedding or slick aisles that encourage rolling.

6) Don’t medicate without guidance.

Avoid giving painkillers, mineral oil, or home remedies unless your veterinarian instructs you. Pain meds can mask symptoms your vet needs to evaluate, and oral products are not appropriate for every colic type.

7) Prepare for transport if advised.

If referral is recommended, have a safe, ready trailer and a plan for winter roads. Keep your horse’s Coggins and paperwork handy to avoid delays.

Practical Checkpoints for Cold Spells

Trough audit: Before a front, test every heater and replace worn cords. Have a plan for hauling water if hydrants freeze.

Intake logs: In deep cold, jot down approximate daily water levels and manure output. A sudden drop in either is a warning sign.

Hay stash: Keep at least a week of the same hay on hand to ride out supply hiccups.

Contact sheet: Tape your vet’s number to the feed room door along with barn directions and gate codes for anyone helping in an emergency.

Winter colic prevention hinges on three controllables: water, forage consistency, and routine. Keep water ice-free and appealing, transition feed gradually, encourage movement, and watch for the subtle changes that signal a problem. If your gut says something is off, call your veterinarian and act. Quick recognition and prompt care save horses.

References

American Association of Equine Practitioners (AAEP). “10 Tips for Preventing Colic.”

Oklahoma State University Extension. “Optimizing Water Intake” (AFS-3931).

Oklahoma State University Extension. “Feeding Management of the Equine.”

OSU Agriculture News. “Horse owners need to be watchful for signs of colic.”

UC Davis School of Veterinary Medicine, Horse Report. “Colic Happens.”