Diarrhea is a common problem in horses as it can be a result of many different causes.  It is typically a sign of infection or dysbiosis in the hindgut. Diarrhea is defined as the excessive and frequent defection of loose or liquid stool. It can result in imbalanced electrolyte levels and impaired water absorption throughout the intestine.
Dealing with a horse that has diarrhea requires careful attention to their feeding plan and to their daily management. In some cases, diarrhea is a temporary annoyance that resolves itself with minimal intervention. Chronic cases in which diarrhea persists for at least 7 to 14 days can require greater intervention.
Diarrhea can affect horses of all ages, breeds and sizes, resulting in dehydration, weight loss, poor nutrient absorption or electrolyte imbalance. Diarrhea is described as the increased excretion of liquid or semi-solid feces. Cases of equine diarrhea can range in severity from mild episodes to serious and long-term episodes, which may require veterinary attention.
Mycotoxins are naturally occurring toxic substances which are produced by mould and fungus in your horseâ€™s hay. Mycotoxins can cause negative effects in horses including colic, gastrointestinal upset, weight loss, feed withdrawal, immune suppression, impaired performance or poor growth.
Internal parasites, also known colloquially as worms, are a common concern for many horse owners. Parasites are organisms that live on the horseâ€™s skin or infiltrate the intestinal tract to gain nutrients. They can cause inflammation, immune problems, ulcers, and, in serious cases, impaction of the intestines.