Gastric Ulcer Syndrome in Horses: Causes, Symptoms & Treatment

Low pH in a horse's stomach and a few other factors can lead to Gastric Ulcer Syndrome in equines. Here, our Ocala veterinarians discuss Gastric Ulcer Syndrome in horses, what the symptoms are and what treatment options are available.

What Are Gastric Ulcers?

Ulcers (open wounds and soft tissue thinning) on the stomach are referred to as gastric ulcers. Gastric ulcers are fairly common in horses, particularly athletic ones.

Horses have smaller stomachs relative to their size, so they will often eat less but more frequently throughout the day. For horses that naturally graze this also means that their body will produce a steady supply of gastric acid to help with digestion although the feed and saliva will dilute this acid.

What Are The Causes of Gastric Ulcer Syndrome in Horses?

Gastric Ulcer Syndrome in horses is generally caused by an imbalance between mucosal aggressive and protective factors.

The length of time that the horse experiences acid exposure will determine the severity of this condition. Ulcers that occur in the glandular mucosa of horses are typically caused by a disruption of blood flow and decreased mucus and bicarbonate secretion.

If a horse has been fasting or gone through long periods without eating it will be more likely to experience gastric ulcer syndrome along with foals that nurse or feed infrequently.

What Are The Symptoms Of Gastric Ulcer Syndrome in Horses?

Below are some common signs of gastric ulcers in horses.