Blood Test Fails to Detect Pain in Horses with Gastric Ulcers

A recent study conducted by a team of Australian veterinarians has highlighted the difficulty of detecting pain in horses suffering from gastric ulcers, underscoring a pressing need for improved diagnostic methods in equine veterinary practice. The research, published in a peer‑reviewed journal, focused on the subtle and often ambiguous clinical signs that can indicate discomfort in affected animals.

The investigators examined 120 horses diagnosed with gastric ulceration and assessed a range of behavioral and physiological indicators, including changes in posture, feeding patterns, and heart rate variability. They found that many of the signs traditionally used to infer pain—such as reduced feed intake or altered gait—were also present in healthy horses and in those with other conditions, making it hard to isolate ulcer‑related discomfort. The study suggests that reliance on these conventional cues may lead to under‑recognition of pain, potentially compromising animal welfare and treatment outcomes.

The authors call for the development of more specific, objective biomarkers and training protocols to aid veterinarians and horse owners in identifying ulcer‑related pain early. They also recommend further research into the pathophysiology of equine gastric ulcers to inform better therapeutic strategies and improve overall equine health management.