Why is my horse’s hoof crack getting worse after wet weather?
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Overview
Wet weather can make a hoof crack look more obvious, longer or deeper because the hoof horn softens and expands. That doesn't always mean the crack has suddenly become serious, but it does mean the hoof may be under more stress and needs a closer look.
There can be several reasons this happens, including a hoof that is too wet and drying out again, a crack that was already present, poor balance or wear, or infection starting to affect the hoof wall or sole.
Things To Check
1. See whether the crack changes after turnout in wet ground or after standing in a damp stable.
2. Check if the hoof feels softer, crumbly or more prone to splitting at the crack.
3. Look for heat, swelling, sensitivity, discharge or a bad smell around the hoof.
4. Notice whether the horse is shorter in stride, footy, or uncomfortable on that leg.
5. Compare the crack with the other hooves to see if it is in one hoof only or part of a wider pattern.
6. Check for chipping at the hoof edge, uneven wear, or a long toe that may be adding strain.
7. Think about recent changes such as mud, more turnout, less trimming, or a change in routine.
Common Causes
The most common reason is moisture affecting the hoof wall. When a hoof gets repeatedly wet and then dries again, it can soften and split more easily, so an existing crack may open up.
Uneven balance or excess strain on part of the hoof can also make a crack progress over time. This is often seen when the hoof is long, chipped, or not wearing evenly.
Sometimes a crack is worsened by underlying hoof quality issues, such as brittle horn, previous damage, or a poor fit between the hoof capsule and the way the foot is loading.
Less commonly, infection or inflammation in the hoof can contribute, especially if there is heat, pain, smell or discharge.
What To Do
Keep the hoof as clean as you reasonably can and pick it out daily, especially after wet turnout. A simple routine helps you spot changes early.
Try to reduce unnecessary time standing in deep mud or very wet bedding if you can, and keep the stable or field area as dry as practical.
Take clear photos of the crack every few days in the same light and angle. That makes it easier to tell whether it is actually worsening or just looking worse after wet weather.
Keep an eye on comfort. If the horse starts to look sore, more uneven, or less willing to work, it's sensible to get the hoof assessed.
Arrange regular trimming or farriery care, as balancing the hoof can help reduce strain on the crack and may limit further splitting.
When To Contact A Vet
Contact your vet if the crack is getting rapidly worse, the horse is lame, or you notice heat, swelling, discharge, a strong smell, or marked sensitivity. These signs can suggest something more than a simple surface crack and it's worth getting the hoof checked promptly.
Products That May Help
Keeping hooves and turnout areas clean and dry can be part of a sensible routine when wet weather is making hoof cracks harder to manage.
Related Questions
Should I keep my horse in or turn them out if a hoof crack is worsening?
How often should a horse with hoof cracks be trimmed?
Can wet weather cause hoof cracks in more than one hoof?
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.