Why is there a vertical crack in my horse’s hoof wall?
Share This Guide
Read time: 3 minutes
Overview
A vertical crack in the hoof wall is fairly common and often points to a hoof that’s a bit dry, brittle, under strain, or wearing unevenly. It doesn’t always mean there’s a serious problem, but it’s worth keeping an eye on because some cracks stay superficial while others can deepen or become painful.
The exact cause can vary, so the aim is to look at the crack alongside the rest of the hoof and how your horse is moving.
Things To Check
1. See where the crack starts and how far it runs. A small surface crack near the top of the wall is different from one that reaches the ground or seems to travel upward.
2. Check whether the hoof is warm, sore, or if your horse is short-striding, reluctant to turn, or uncomfortable on that leg.
3. Look for hoof imbalance, such as uneven wear, long toes, flares, or a hoof that looks a bit misshapen compared with the others.
4. Notice whether the hoof has been very dry, very wet, or exposed to constant changes between the two, as this can affect the wall.
5. Check for signs of a nail hole issue if the horse is shod, especially if the crack is near the shoe or seems linked to recent shoeing.
6. Look for dirt, discharge, bruising or a smell from the hoof, as cracks can sometimes go along with other hoof problems.
7. Compare it with the other feet. A crack in just one hoof can sometimes point to wear, loading or a previous injury in that limb.
Common Causes
The most common reasons are simple wear and tear, dryness, or uneven loading of the hoof. Minor cracks can also happen after a knock, a missed trim, or when the hoof is growing and wearing at different rates.
In shod horses, a crack may be related to shoeing balance, a nail hole, or movement of the shoe. In barefoot horses, it’s often linked to hoof shape, ground conditions, or the amount of support the hoof wall is getting.
Less commonly, a crack can be associated with a deeper problem in the hoof capsule, past trauma, or another issue affecting how that foot is bearing weight. You usually can’t tell that from the crack alone.
What To Do
Keep the hoof clean and check it regularly so you can see whether the crack is staying stable or changing. Take note of any lameness, heat, sensitivity, or increasing movement in the crack.
Try to keep hoof care consistent. Regular trimming, balanced shoeing where relevant, and sensible turnout conditions can all help reduce extra strain on the hoof wall.
If the hoof is very dry or very wet from environment changes, aim for steadier day-to-day conditions where possible. Small changes in footing and moisture can make a noticeable difference over time.
If the crack is shallow and the horse is comfortable, monitoring it closely is often the first step. If it seems to be getting longer, wider, or more mobile, have it assessed.
When To Contact A Vet
Contact your vet if the horse is lame, the hoof is hot or painful, the crack is deep or moving, or you see bleeding, discharge, swelling above the hoof, or a sudden change in the horse’s way of going.
It’s also sensible to get advice if the crack seems to be getting worse despite normal hoof care, or if you’re unsure whether it involves the hoof capsule more deeply.
Products That May Help
Keeping muddy turnout, wet ground and routine hoof hygiene under control may help support day-to-day hoof care alongside regular trimming and monitoring.
Related Questions
Why does my horse’s hoof crack keep coming back?
Should I clean a cracked hoof every day?
When does a hoof crack need farrier attention?
Atlas is here to support owners with practical, easy-to-understand guidance. It is not a substitute for professional veterinary advice. If you're concerned about your animal's health, symptoms worsen, or something doesn't feel right, contact your vet.