Changes

===Clinical signs===

===Clinical signs===

Small enteroliths may pass through the gastrointestinal tract unnoticed. Clinical signs generally only occur if the enterolith is large enough to cause an obstruction. Obstruction most commonly occurs in the transverse or small colon.  Affected horses often present with a history of being fed a large quantity of alfalfa hay or pellets in their diet.

Small enteroliths may pass through the gastrointestinal tract unnoticed. Many horses with an enterolith have a history of chronic or recurrent colic, sometimes occurring over a period of weeks up to a year. Clinical signs in these horses may be non-specific including weight loss, anorexia, changes in demeanour and lethargy. Signs indicative of abdominal discomfort may also be present such as pawing, flank-watching, kicking or resentment of a girth. Clinical signs generally only occur if the enterolith is large enough to cause an obstruction (commonly occurs in the transverse or small colon.  Affected horses often present with a history of being fed a large quantity of alfalfa hay or pellets in their diet.

===Diagnosis===

===Diagnosis===