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Colic vs. Ulcer Symptoms in Horses: How to Tell the Difference

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🚀 Quick Summary


Table of Contents

Open Table of Contents

1. The Anatomy Difference: Gut vs. Stomach

Colic (Abdominal Pain)

Ulcers (Gastric Pain)


2. Symptom Comparison Chart (Print This!)

SignColic (911)Ulcer Flare-Up
OnsetSudden. Fine at 5 PM, trashing at 6 PM.Gradual. “Off” for days.
SeverityGets worse rapidly.Consistent annoyance.
EatingUsually Stops Completely.Picks at grain. Eats hay slowly.
Lying DownLaying flat, rolling repeatedly, thrashing.Lying sternal (upright), or flat briefly.
ManureScant, dry, or none (Impaction).Often normal, or soft cow-patty.
Heart RateElevated (> 50-60 bpm).Often Normal (~36-44 bpm).
SweatingYes (Pain/Shock).Rarely.
Looking at FlankConstant / Violent.Occasional / Mild.

3. The “Walking Test” (Colic Diagnosis)

If you suspect Colic:

  1. Walk: Hand walk for 15 mins.
  2. Observe:
    • Result A (Better): Passes gas/manure. Looks brighter. Ears perk up. -> Likely Gas Colic.
    • Result B (Worse): Tries to go down immediately. Sweating increases. -> Likely Major Colic.
    • Result C (Same): Just grumpy. Kicks at belly. -> Could be Ulcers/Mild Impaction.

4. Vital Signs: Heart Rate is Key

Learn to take a HR.

Gum Color:


5. The Danger Zone: Mild Colic = Severe Ulcers?

Here is where it gets tricky. Recurrent Mild Colic is often a symptom of Hindgut Ulcers (Colitis) or Grade 3-4 Stomach Ulcers.


6. Action Plan: What to Do While Waiting for the Vet

  1. Safety: Do not get hurt. If he is thrashing violently, stay out of the stall.
  2. Walk: Keep him walking if safe (prevents rolling/injury).
  3. Remove Feed: Take away all hay/grain.
  4. Meds: Do NOT give Banamine unless the vet says “Yes.” It can mask surgical signs or worsen ulcers.
    • Alternative: Vet might suggest Buscopan (Antispasmodic) if it sounds like Gas Colic. It’s safer for the stomach.

🏆 Final Verdict

Learn your horse’s “Normal.” A Colic horse looks Scared. An Ulcer horse looks Angry/Grumpy.

When in doubt: Load the Trailer. It is better to be wrong at the clinic than right at the autopsy.


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