What should I check if my horse has mud fever but no heat or swelling? | arlo.® Atlas
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Overview
If your horse has mud fever but there’s no heat or swelling, the main things to check are the skin, the scabs, how wet or muddy the legs have been, and whether anything is rubbing or irritating the area. Mud fever can still be present without obvious heat or swelling, but those signs may also suggest something else is going on.
It’s often a case of looking for small changes rather than dramatic ones. You’re checking for skin damage, moisture, crusting, soreness and any pattern that points to mud exposure or another skin problem.
Things To Check
1. Check whether the issue is on the lower legs, heels or around the pasterns, and whether it’s on one leg or several.
2. Look closely for scabs, crusting, broken skin, discharge, dampness, redness or hair loss, even if the leg doesn’t feel hot.
3. See whether the problem seems worse after turnout, muddy ground, wet bedding, hosing, or washing the legs.
4. Check for rubbing from boots, bandages, mudguards, wraps or tack that may be irritating the area.
5. Look at the skin between and below the scabs. Small cracks, soreness or a greasy, sore surface can give useful clues.
6. Notice whether your horse is stamping, fussing when the legs are touched, or objecting to the area being cleaned or dried.
7. Check whether there are any other skin changes elsewhere, such as rain scald, itching, or irritation from mud and wet grass.
8. Note how quickly it has changed. A stable patch that’s been there a while is different from something that’s spreading or getting more painful.
Common Causes
The most common reason is mud fever itself, especially when the skin has been kept damp, muddy or dirty for long periods. The skin may be sore and scabby even before obvious heat or swelling appears.
Rubbing or friction from boots, bandages or turnout gear can also make the skin look worse and delay settling.
Other common possibilities include simple skin irritation from wet conditions, minor scratches, or a separate skin issue that’s being made worse by mud and moisture.
Less commonly, a deeper skin infection or another leg problem may be involved, which is why it’s worth watching for changes rather than assuming it’s only mud fever.
What To Do
Keep the area as clean and dry as you reasonably can without over-washing it. If the skin is sore, avoid harsh scrubbing, and don’t pick scabs off forcefully.
Check the turnout and stable environment. Muddy gateways, wet bedding and persistent damp can all keep the skin irritated, so reducing exposure where possible may help support recovery.
If anything is rubbing, remove or adjust it and see whether the skin improves. It’s also sensible to keep a simple note of what the skin looks like each day, especially if you’re trying to spot a pattern.
If the area becomes more painful, starts to spread, or new signs appear, that’s a good time to get veterinary advice.
When To Contact A Vet
Speak to your vet if the skin is getting worse, the horse is clearly sore, the area is spreading, or you notice discharge, marked crusting, lameness or any swelling/heat developing. If it keeps coming back or doesn’t improve with sensible hygiene and environmental changes, your vet can help you work out what else may be contributing.
Products That May Help
If your horse is dealing with muddy turnout, this collection may be useful as part of a sensible routine for keeping legs and the surrounding area clean and manageable.
Related Questions
Can mud fever start without heat or swelling?
Should I wash mud fever legs every day?
How do I tell mud fever from simple mud irritation?
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.