Why does my horse have greasy, crusted skin on the pasterns? | arlo.® Atlas
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Overview
Greasy, crusted skin on the pasterns is often seen with mud fever, which is a common skin problem in wet, muddy conditions. It can also be linked to irritation, rubbing or other skin issues, so it's worth checking the area carefully rather than assuming it is one thing straight away.
Most cases start with damp, dirty skin, small cracks, scabs or soreness around the lower legs. The good news is that owners can often spot the early signs and help reduce the things that make it worse.
Things To Check
1. Check whether the skin has been wet, muddy or tightly clipped, especially after turnout.
2. Look closely for scabs, crusting, greasy patches, redness, swelling or broken skin on the pasterns and lower legs.
3. Feel the area gently for heat or tenderness, and notice if your horse pulls away when you touch it.
4. See whether the horse is stamping, brushing, rubbing or seeming uncomfortable when moved.
5. Check if the problem is on one leg or several, as that can help you judge whether it looks localised or more widespread.
6. Think about recent changes in turnout, weather, bedding, grooming or washing that may have affected the skin.
7. Watch for discharge, a smell, bleeding or areas where the skin looks thicker than usual.
8. Note whether the issue is getting worse quickly or staying in the same place.
Common Causes
The most common cause is mud fever, where wet, muddy conditions and skin irritation can lead to crusting and scabs on the lower legs. It often shows up on white-legged horses, clipped horses or horses that spend a lot of time in damp fields.
Other common possibilities include simple skin irritation from mud, moisture or repeated washing, plus rubbing from boots or bandages if they fit poorly.
Less commonly, there may be a bacterial or fungal skin problem, mites, or another skin condition that needs a vet to assess properly.
What To Do
Keep the area as clean and dry as you reasonably can without over-washing it. Gentle routine grooming can help you remove loose mud and spot changes early.
If the skin is already sore, avoid picking off scabs or scrubbing hard, as that can make the irritation worse. Instead, keep a close eye on the area and note any change in heat, swelling, discharge or comfort.
Reduce contact with wet, muddy ground where you can, and make sure turnout, bedding and leg care routines are as consistent as possible. If boots or wraps are used, check that they are clean, dry and not rubbing.
If the problem keeps returning, spreading or becoming more uncomfortable, it is sensible to ask your vet for advice.
When To Contact A Vet
Contact your vet if the skin is very swollen, hot, painful, oozing, or if your horse becomes lame or very uncomfortable. You should also get advice if the area is spreading, not improving with sensible home care, or if you're unsure whether it is mud fever or something else.
Products That May Help
A hoof and mud care routine can be useful when you're managing muddy turnout, lower-leg cleanliness and day-to-day hygiene around the pasterns.
Related Questions
Is mud fever contagious between horses?
Should I wash my horse’s legs every day in winter?
Can clipped legs be more prone to muddy skin problems?
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.