Why are my horse’s heels greasy and crusty in winter?
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Overview
Greasy, crusty heels in winter are often linked to damp, muddy conditions and skin irritation. It can also happen when the skin is getting rubbed, staying wet for too long, or developing a common bacterial skin issue often associated with mud and moisture. There can be several possible causes, so it’s worth checking the skin closely rather than assuming it’s just dirty.
Things To Check
1. Check whether the heels are worse after turnout in wet ground, or after standing in a damp stable.
2. Look closely for redness, scabs, crusting, hair loss, swelling, heat, cracks or any oozing.
3. Feel whether the skin is sore or your horse objects to having the area touched or cleaned.
4. Check if the grease and crusting is limited to the heels or also affecting the pasterns and lower legs.
5. Think about recent clipping, washing, bandaging or leg care that might have kept the skin damp.
6. Look at the field and stable conditions to see whether mud, wet bedding or poor drainage may be contributing.
7. Note whether there’s any lameness, marked swelling or a change in how your horse is moving.
Common Causes
The most common cause in winter is prolonged wetness, especially from mud, rain and damp bedding. That can soften the skin and make it easier for irritation and crusting to develop.
Friction or repeated washing can also make the skin greasy, flaky or sore, particularly if the legs are not dried properly afterwards.
Another common possibility is a mud-related skin infection or inflammation, which often starts with small crusts and can spread if the skin stays wet.
Less commonly, the problem may be linked to mites, contact irritation from bedding or products, or another skin condition that needs a vet’s input.
What To Do
Keep the area as clean and dry as you can, but avoid over-washing or scrubbing hard, as that can make already irritated skin worse.
Remove mud gently, dry the legs thoroughly, and try to reduce how long the heels stay wet after turnout or washing.
Improve stable hygiene and turnout management where possible, especially if the problem seems to flare in muddy or wet weather.
Keep an eye on whether the skin is getting better, staying the same or spreading. Taking a photo every few days can help you spot small changes.
If the skin looks sore, cracked or increasingly crusty, it’s sensible to ask your vet for advice before it becomes harder to manage.
When To Contact A Vet
Contact your vet if the skin is painful, swollen, hot, cracked or oozing, or if your horse becomes lame. You should also get advice if the area is spreading, not improving with sensible care, or if you’re unsure whether this is simple winter skin irritation or something that needs treatment.
Products That May Help
If winter mud, damp bedding or dirty legs are part of the problem, a good cleaning routine can make day-to-day management easier and more consistent.
Related Questions
How do I clean muddy horse legs without irritating the skin?
Can wet turnout cause greasy heels in horses?
When should greasy heels 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.