Picking out a hoof is a daily physical examination that happens to remove dirt. In the ninety seconds you are down there you can collect six things: smell, heat, the digital pulse, the state of the shoe, the condition of the wall, and anything embedded in the sole or frog. Merck's account of thrush lists infrequent hoof cleaning among the conditions historically associated with it, and UF/IFAS Extension notes that thrush is "recognized by a strong odor during hoof cleaning," which means the daily pick is where most hoof problems are first detectable. Work heel to toe, do not dig, and do not pare, cut or open anything.
Before the pick comes out
Stand where you can be pushed away rather than stepped on. Face the tail, stand beside the leg rather than in front of it, and keep your feet out from under the horse.
Run your hand down the leg first. You are feeling for heat and swelling on the way to the foot, and you are telling the horse what is coming.
Ask for the foot rather than taking it. A horse braced against you is a horse who will snatch the foot back.
Do all four, every time, in the same order. The order matters because it is what turns four observations into a comparison. Heat in one foot is only meaningful next to the other three.
If any of this is a fight rather than a routine, the handling is the problem to solve before the hoof care is, and that is groundwork rather than hoof care.
The six things you are collecting
1. Smell
The cheapest diagnostic on this list and the one people miss because they are looking rather than noticing.
The Merck Veterinary Manual describes affected feet in thrush as usually having "a distinct foul odor and a thick black discharge emanating from on overly soft frog" (Merck Veterinary Manual, Thrush in Horses, read 2026-08-28). UF/IFAS Extension says the same from the owner's side: thrush is "recognized by a strong odor during hoof cleaning" (UF/IFAS, Hoof Care for Florida Horses, VM265, read 2026-08-28).
If a foot smells different from the other three, that is a finding. Say so to your farrier and, if the horse is lame or the discharge is heavy, to your vet.
2. Heat
Feel the coronet and the hoof wall with the back of your hand, and compare all four. A foot that is warmer than its fellows is worth reporting.
Merck lists "an increased digital pulse or higher palpable temperature of the hoof capsule" among the examination findings for a hoof abscess (Merck, Hoof Abscesses in Horses, read 2026-08-28). You are not diagnosing anything by feeling for heat. You are noticing something a vet will ask you about.
3. The digital pulse
The most useful skill an owner can learn, and the hardest to learn from a page. Compare all four feet, and what you are looking for is a difference rather than a value. We set out where to feel and what normal feels like in how to find and feel a digital pulse.
Merck describes a "bounding, exaggerated digital pulse" as a hallmark finding in laminitis (Merck, Laminitis in Horses, read 2026-08-28). That is the reason this belongs in the daily routine rather than in an emergency: you cannot recognize a change if you have never felt the baseline.
4. The shoe, if he wears one
- Is it still tight? Try to move it with your fingers.
- Have any clenches risen? Run a hand around the outside of the wall. A raised clench is a sharp edge that will cut the opposite leg.
- Has it shifted or twisted?
- Is it worn unevenly? Note where, and mention it. Wear patterns are information your farrier uses.
5. The wall and the coronet
Look for cracks and note where they start, chips at the bottom edge, and any change at the coronary band. Merck lists "swelling at the coronary band" among the signs seen with a hoof abscess, so a change up there is worth reporting rather than watching.
6. Anything embedded
A stone in the sulcus comes out with the pick and is nothing. A nail, a piece of wire or anything that has gone into the foot is not.
Do not pull it out. Where it is and how deep it went are things your vet needs to know and often needs to see, sometimes on a radiograph with the object still in place. Restrain the horse, keep him still, and call.
How to actually do it
- Work from the heel toward the toe, so you are pushing debris out of the foot rather than into it.
- Clear both collateral grooves, the deep channels either side of the frog, and the central sulcus between the heel bulbs. These are where packed material sits and where a smell hides.
- Clear the whole sole, including the edge where sole meets wall.
- Use a brush if the pick has one, because the last layer of dirt is what hides a crack.
- Look at what came out, briefly. Wet, black, foul-smelling material is different from dry dirt.
- Put the foot down rather than dropping it.
Merck's description carries one caution worth repeating exactly: in thrush, "the surface of the horn of the frog usually has a rough appearance, and bleeding often occurs when the frog tissue is incautiously touched with a hoof pick." A frog that bleeds when you touch it with a pick is a frog to stop touching and to report, not one to clean harder.
What not to do
Do not dig. A hoof pick is for lifting out what is loose. It is not a tool for excavating a black spot, opening a crack, or chasing something under the sole. Merck notes that in thrush, "debridement of abnormal horn of the frog is necessary to allow access to the deeper diseased tissue for topical treatment." Debridement is a farrier's or a veterinarian's procedure and this site publishes no instruction for it.
Do not pare, trim, rasp or cut anything.
Do not apply a product because a page recommended it. Several of the pages that rank for hoof problems publish specific antiseptic dilutions and household-chemical mixtures. None appears here. What goes on your horse's foot, at what strength, is your vet's or your farrier's call for your horse.
Do not skip a foot because he is difficult about it. A horse who has become difficult about one foot in particular is telling you something about that foot.
What to do with what you found
Most days, nothing. That is the point of a baseline.
Tell the farrier, at the next visit or by message: uneven wear, a new crack, risen clenches, a foot that smells, a foot he is now reluctant to give you.
Tell the vet, promptly: any non-weight-bearing lameness, both front feet sore at once, a bounding digital pulse, heat plus lameness in the same foot, anything embedded, or a frog that bleeds on light contact.
Write it down. One line, dated. The pattern is what has value, and the pattern only exists if it is recorded. The same argument applies here as in a per-horse health log your vet can actually use.
FAQ
How often should I pick out my horse's feet?
Daily is the standard, and the reason is not cleanliness. It is that picking out is the only routine that puts you close enough to smell, feel and see all four feet every day. Merck lists infrequent hoof cleaning among the historical associations with thrush.
Which way do I scrape, heel to toe or toe to heel?
Heel to toe, so debris is pushed out of the foot rather than deeper into the collateral grooves and the central sulcus.
What does thrush smell like?
Merck describes a distinct foul odor with a thick black discharge from an overly soft frog. UF/IFAS puts it from the owner's side as a strong odor noticed during hoof cleaning. If one foot smells and the others do not, report it.
My horse's frog bled when I picked his foot. Is that normal?
No, and it is a specific finding rather than a general one. Merck notes that in thrush, bleeding often occurs when frog tissue is incautiously touched with a hoof pick. Stop, and speak to your farrier or your vet.
Should I pull out a nail stuck in my horse's hoof?
No. Where it is and how deep it went can matter a great deal and your vet may want to see it in place. Keep the horse still and call.
What am I looking for when I pick out a foot?
Smell, heat, the digital pulse compared across all four feet, the state of the shoe and clenches, cracks and changes at the coronet, and anything embedded. Everything on that list is something to notice and report rather than something to act on.
Sources consulted: Merck Veterinary Manual, "Thrush in Horses", "Hoof Abscesses in Horses" and "Laminitis in Horses", all read 2026-08-28, for the odor and discharge description, the frog bleeding note, the debridement statement, the increased digital pulse and hoof temperature findings, the coronary band swelling and the bounding digital pulse in laminitis; UF/IFAS Extension, "Hoof Care for Florida Horses" (VM265), read 2026-08-28, for thrush being recognized by odor during hoof cleaning. University of Minnesota Extension's hoof care pages returned HTTP 403 to our request on 2026-08-28 and are not cited; that is our retrieval failing rather than anything on their side. This site is not written by a veterinarian or a farrier. Nothing here is a diagnosis, a dose or a trimming instruction, and no antiseptic, dilution or product protocol appears anywhere on this page.