Things To Look For:
Long, trench-like marks in the bedding.
Bedding piled up against a wall.
Less manure than normal.
Watery manure piles or manure stains on the wall.
Hard, dry fecal balls (possibly sticky yellow mucous).
All of the above are signs of problems such as diarrhea, constipation, dehydration, colic, restlessness, pain or injury, or other serious illnesses.
If You Observe Any Of The Above:
Check your horse's Vital Signs.
Monitor your horse's attitude and consistency/amount of manure. If either of these is abnormal, call your veterinarian.
Offer fresh water and monitor your horse's water intake.
Offer a small amount of grain. If he doesn't eat, call your veterinarian.
Examine your horse for any injuries or pain.
Call your veterinarian if you suspect that your horse may be ill.