Summer Colic Alert: Changing Weather, Changing Risks
As Scotland enjoys (and endures) an unusually hot, dry spell, many of us are welcoming the sunshine. But as equine vets, we’re looking a few steps ahead—and what comes next could mean increased risk for your horse.
🌧️ When the rain returns—as it inevitably will—expect a grass growth surge. After prolonged dryness, this flush of new, lush grass can lead to sudden changes in your horse’s diet. That shift in fibre and sugar levels can unbalance the gut and trigger colic.
🔥 Added dehydration risk: In hot weather, horses often drink less than we’d like, especially if they’re still in light work or turned out on dry pasture. This can lead to dry gut contents and slower gut movement, both risk factors for impaction colic.
🧠 What to do now:
Monitor water intake – soaked feeds and shaded troughs help.
Check droppings daily—dry, hard droppings may be a warning sign.
Limit sudden grazing changes—consider strip grazing or a muzzle if needed.
Call early—if you’re unsure, we’d always rather check a horse early than too late.
💡 As Colic Champions, we’re here to help owners stay one step ahead of problems. And if things don’t go to plan, our Internal Medicine Team—led by Professor David Sutton, alongside Tine Schliewert and Joel Hotchkiss —are here to provide specialist support with advanced diagnostics, hospitalisation and medical treatment if needed. You can read more about the team here: Glasgow Equine Internal Medicine Team »
Your horse’s health is our priority—especially when the weather changes. If you’re concerned or just want to talk through a management plan, give us a call.
