Impaction of the large colon is seen in horses with limited access to drinking water or those grazing bare pastures. Horses fed on a low-roughage diet are more prone to developing the condition. The ingested sand may act as an inflammatory stimulus leading to a foreign body enteritis. Alternatively the sand may accumulate and form a sediment within the right dorsal colon, pelvic flexure and transverse colon leading to an impaction. | Impaction of the large colon is seen in horses with limited access to drinking water or those grazing bare pastures. Horses fed on a low-roughage diet are more prone to developing the condition. The ingested sand may act as an inflammatory stimulus leading to a foreign body enteritis. Alternatively the sand may accumulate and form a sediment within the right dorsal colon, pelvic flexure and transverse colon leading to an impaction. |