What should I check if my horse has a suspected ringworm patch? | arlo.® Atlas
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Overview
If you think your horse has ringworm, check the patch closely for hair loss, scabbing, crusting and whether it is circular or spreading. Similar-looking skin changes can also happen with simple rubbing, minor skin irritation, rain scald or other skin issues, so you can't confirm ringworm by sight alone.
It helps to look at the skin, the coat around it and the horse's wider environment. That gives you a better idea of whether the area is changing, and whether anything in turnout, tack or grooming could be contributing.
Things To Check
1. Check the shape of the patch and whether it looks round, patchy or irregular.
2. Look for hair loss, broken hairs, scabs, dry crusts, flaking skin or a greyish surface.
3. Feel gently for heat, tenderness or swelling around the area.
4. Note whether the horse seems itchy, rubs the area, or is bothered when you groom it.
5. Check if the patch is on a common rubbing area such as the girth, saddle, headcollar or rug line.
6. Think about recent contact with other horses, shared brushes, rugs, tack or stable kit.
7. Watch whether the patch is staying the same, improving or spreading over a few days.
Common Causes
Ringworm is one possible cause, especially if the patch is circular, scurfy and spreading.
Other common causes include rubbing from tack or rugs, rain scald, simple dermatitis and minor skin irritation from sweat, dirt or grooming.
Less commonly, a bacterial skin infection or another skin condition may look similar, which is why a visual check at home can only go so far.
What To Do
Keep the area clean and dry, and avoid overhandling it. If the patch is dirty, you can gently remove loose debris without scrubbing hard.
Use separate grooming kit items for the affected horse if you can, and wash your hands after handling the area. Try to keep an eye on whether any stable mates develop similar patches.
Take a clear photo today, then compare it over the next few days so you can see whether it is changing. If it spreads, becomes sore, or more patches appear, that's useful information to pass on to your vet.
Products That May Help
If you're dealing with a patchy, scurfy area on the coat, gentle washing and routine grooming can be useful parts of your care routine while you keep an eye on changes.
Related Questions
Is ringworm in horses always circular?
Can ringworm spread to other horses?
How can I tell ringworm from rubbing or rain scald?
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.