Watch for poor appetite, weight loss, a dull coat, girthiness, grumpiness under saddle and mild recurring colic. Ulcers are diagnosed by a vet with a scope, and managed with treatment plus more forage.
Why ulcers happen
A horse’s stomach produces acid continuously because it evolved to graze all day. When forage runs short, the stomach empties and acid splashes the upper lining, causing ulcers. Stress, stabling, hard feed and intense work all raise the risk.
Know the signs
Common signs are a reduced or picky appetite, gradual weight loss, a dull coat, sensitivity or objecting when girthed up, a change in attitude under saddle, teeth grinding, and low-grade repeated colic. Many horses show only one or two subtle signs.
Get a diagnosis
The only way to confirm ulcers is a gastroscope by your vet. Do not guess and treat blindly, since the signs overlap with other problems. A proper diagnosis means the right treatment and avoids wasting money on the wrong products.
Manage with forage first
Alongside veterinary treatment, management is key. Keep forage in front of the horse as much as possible so the stomach is rarely empty, using a slow feeder to make it last. Feed a little forage before exercise to buffer acid.
Reduce the triggers
More turnout, less stress, smaller and more frequent meals, and limiting high-starch hard feed all help. A balanced diet supports overall gut health, and some horses benefit from a targeted digestive supplement chosen with your vet. See our horse supplements guide.
