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1 in 3 horses suffer from gastric ulcers

Could your horse have gastric ulcers?

Equine Gastric Ulcers

Equine gastric ulcers are a common problem affecting over 50% of horses1. Ulcers are more often found in sports horses and racehorses, but they can affect any horse at any age1.

There are two forms of equine gastric ulcers; squamous ulcers and glandular ulcers, which together come under the umbrella term Equine Gastric Ulcer Syndrome. The two forms of this disease relate to the two regions of the equine stomach.


The lighter pink, squamous region of the equine stomach sits above the darker pink, glandular region. The name “squamous” comes from the type of lining the stomach has in this region. In normal circumstances this part of the stomach does not come into contact with gastric acid. Because of this it has no natural defences against the harmful effects of acid.


Glandular ulcers are found in the darker pink, glandular region of the stomach. The name “glandular” comes from the large number of acid-producing glands that are found in the lining of the stomach in this region. Because the glandular region is responsible for the production of gastric acid it normally has natural defences in place to protect the stomach wall from any damage caused by this acid.