Diarrhea in Horses

Fever PHF
Nonsteroidal antiinflammatory drugs including Butazone
Colitis
Poisoning such as slaframine poisoning
Cancer within the digestive tract
Rotavirus
If the diarrhea isnt caused by something obvious that you know will pass such as a minor behavioral cause its time to discover what else could be causing it. Start to worry if along with watery manure your horse shows other symptoms including
Blood or mucus in the manure
Foulsmelling manure beyond the normal manure smell
Diarrhea that lasts more than 24 hours
Projectile pooping
Other symptoms of colic
Elevated rectal temperature
Lethargy
Signs of weight loss or other health problems before the diarrhea started
Signs of dehydration do a skin pinch or capillary refill test
Pale gums
Lack of appetite
Treatment Prevention
If your horse has diarrhea you need to determine how severe it is. You may know that your horse gets nervous when the farrier comes in the trailer or at horse shows. In these cases runny manure probably isnt a sign of illness and once the stress is over things will return to normal. Do make sure your horse is eating and drinking normally otherwise. If after 24 hours the diarrhea is not gone call the vet who will help you find out whats causing the diarrhea and start your horse on the appropriate treatment.