What causes greasy heel in horses after wet turnout?
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Overview
Greasy heel after wet turnout is often linked to damp, muddy conditions irritating the skin on the lower legs. It commonly starts when moisture, mud and friction soften the skin, making it easier for bacteria and dirt to build up. There can be several possible causes, so it’s worth checking the legs carefully rather than assuming it’s just from the weather.
Things To Check
1. Check whether the problem appears after turnout in wet fields or muddy gateways, or whether it’s present all the time.
2. Look closely for scabs, crusting, redness, broken skin, discharge, swelling or warmth around the heels and pasterns.
3. Feel whether the skin is soft, wet or thickened, as prolonged damp can change how the area looks and feels.
4. See whether the horse is stamping, sensitive to touch or reluctant to have the legs handled or washed.
5. Check if feathering, mud caked on the legs or tight boots are trapping moisture against the skin.
6. Consider whether recent clipping, washing or grooming may have irritated the skin or removed some of its natural barrier.
7. Make a note of whether more than one leg is affected, since that can sometimes help you spot an environmental pattern.
Common Causes
The most common cause is prolonged wet, muddy turnout softening the skin and allowing grime to sit on the lower legs. This can lead to irritation and the greasy, crusted look owners often notice.
Repeated washing, rubbing from mud, or leaving wet legs covered for too long can also contribute. In some horses, clipped areas, feathering or sensitive skin make the problem more likely.
Less commonly, the signs may be part of a broader skin issue such as mud fever-type inflammation or another skin irritation that needs a closer look.
What To Do
Keep the legs as clean and dry as you reasonably can, especially after turnout in wet weather. Gently remove mud and dried dirt, then dry the skin well without rubbing it harshly.
Try to reduce long periods standing in wet ground where possible, and keep an eye on whether the problem improves when turnout conditions are drier. If the horse has feathering, check that it isn’t holding moisture and debris against the skin.
Use a calm, consistent routine and watch for any changes in comfort, heat, swelling or skin damage. If the area keeps recurring, a note of when it happens can help you spot a pattern.
When To Contact A Vet
Speak to your vet if the skin becomes sore, swollen, very hot, cracked or oozing, or if the horse seems uncomfortable or lame. Veterinary advice is also sensible if the problem keeps returning, spreads, or doesn’t improve with sensible turnout and hygiene management.
Products That May Help
If your horse’s coat and lower legs are getting wet, muddy or grimy, a gentle washing routine can be useful as part of day-to-day care. This collection may help support regular cleansing without overhandling sensitive skin.
Related Questions
Is greasy heel the same as mud fever?
Should I wash my horse’s legs after wet turnout?
When should greasy heel be checked by a vet?
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.