What does rain scald look like on a horse?
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Overview
Rain scald usually looks like small, raised scabs or crusts in the coat, often with clumps of hair sticking up or coming away when you groom. The skin underneath may look sore, damp or flaky. It often affects the back, quarters, neck or rump, especially after wet weather, but other skin problems can look similar, so it’s worth checking carefully rather than assuming.
Things To Check
1. Check where the patches are. Rain scald often shows on areas exposed to wet, cool weather, especially along the back, rump, neck or shoulders.
2. Look closely at the coat texture. Hair may feel matted, rough or bunched together, and the tufts can lift away from the skin.
3. Look for scabs or crusts. They may be small at first, then spread into larger crusty patches if the area stays damp.
4. Check for soreness. The skin may look pink, feel warm, or seem uncomfortable when you touch or groom it.
5. Notice whether the skin is broken, weeping or sticky. That can suggest the area is more irritated and may need closer attention.
6. See whether the problem has appeared after a spell of wet weather, muddy turnout or a rug that has stayed damp.
7. Check if there is hair loss or loose scurf. Rain scald can sometimes leave patchy areas where the coat has come away.
Common Causes
The most common cause is a skin reaction linked to prolonged wet, damp conditions, especially when the coat stays wet for too long. This can allow the skin to become irritated and crusty.
Another common factor is a rug, saddlecloth or coat that traps moisture, rubs, or doesn’t dry properly between uses.
Sometimes the signs can overlap with other skin issues, such as bacterial skin infection, fungal problems, lice, or simple skin irritation from mud and weather, so the appearance alone doesn’t confirm the cause.
What To Do
Gently part the coat and see how far the scabbing goes, but avoid picking crusts off, as that can make the skin more sore.
Keep the area as clean and dry as you can. If your horse is wet, allow time for the coat to dry properly and check rugs for dampness or rubbing.
Make a note of where the patches are and whether they spread, improve or stay the same over a few days. Photos can help you compare changes.
Review turnout, shelter and rugging. A horse that is repeatedly getting soaked may need a change in management, especially if the coat is thin or the weather is cold and wet.
If the skin looks only mildly affected, you can often monitor it while keeping the horse comfortable and dry. If it looks sore, spreads, or doesn’t improve, get veterinary advice.
Related Questions
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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.