Horses are talented at injuring themselves on equipment nobody else can even find, and most yards deal with a steady trade in small cuts. The skill is not in dressing a wound — it is in the first five minutes of looking, because the difference between a cut that needs cold water and a cover and one that needs stitching, flushing, or a tetanus conversation is decided by where it is, how deep it runs, and what is underneath it.
The five-minute assessment
Stop any bleeding first with a clean pad and steady pressure, and keep the horse still and calm while you look. Then judge four things. Depth: does the cut part to show tissue beneath the skin, or is it a graze through the hair and top layer? Place: is it over a joint, a tendon, the coronet band, or anywhere near an eye? A wound over a joint is serious even when tiny, because joint fluid leaking or infection entering changes everything. Shape: do the edges lie together, or does it gape and flap? And the horse: is he standing square and sound, or resting the leg and reluctant to move? Punctures deserve their own suspicion — a neat little hole from a nail or thorn can seal over a deep, contaminated track, and punctures near the foot or a joint are vet calls however unimpressive they look.
Cuts that can be managed on the yard
A shallow scrape on a fleshy area — the hindquarter, the shoulder, the neck — that stops bleeding promptly, does not gape, and leaves the horse sound is fair game for yard first aid. Cold-hose it gently to wash out grit and hair, pat it dry, and cover it if flies, bedding, or mud threaten it; a clean horse in a clean box sometimes heals fastest left uncovered and watched. Tetanus is the background question on every wound: a horse whose vaccination is current has cover, while a horse with lapsed or unknown status needs a vet conversation about any break in the skin, full stop. Take a clear photograph in decent light before you dress it, because tomorrow's comparison is how you will know whether it is improving.
Cuts that always earn a vet call
Call the same day, without a trial of first aid, for anything that gapes wide or deep, anything still bleeding after ten minutes of proper pressure, anything over or into a joint, anything involving an eyelid or the eye itself, and anything that has made the horse lame. Cuts low on the leg with tendon or bone visible, wounds with something embedded in them, and wounds that are already hot, swollen, and discharging when you find them all belong to the vet too. So does a horse who is off his feed, dull, or running a temperature alongside even a modest-looking wound — the wound may be the least of it, and only an examination will say.
First aid that helps, and first aid that harms
Cold water, clean pads, pressure, and keeping the horse quiet help almost every wound. Powders and coloured sprays from the tack-room shelf often harm the assessment rather than the wound: they crust over the surface, hide the edges, and make it harder for a vet to judge or stitch later. Never pick at a wound to see how deep it goes, and never wrap a leg wound tightly to stop it bleeding and then leave it — pressure bandages have a short safe life and need watching. If in doubt, photograph it and send the picture to your vet for a verdict; most practices would far rather glance at ten photos than meet one wound a day late. Keep the photo, the date you found it, and how it changed in the horse's KinsLe Pet Passport record, and the next cut gets judged against real history rather than a guess.