An Unwanted Impact

A look at how and where impaction colic happens and what measures might reduce a horse’s risk

Colic is a catchall term for almost any kind of abdominal pain, be it from gas or enteroliths, twists or blockages. The latter, which are better known as impactions, occur when consumed feed material “moves down the intestinal tract more slowly than it should, ultimately clogging the system and blocking any flow of fluid in front of it,” says North Carolina State University professor of equine surgery Anthony Blikslager, DVM, PhD, Dipl. ACVS. 

Horses are particularly prone to this co

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