Changes

==Signalment==  

==Signalment==  

Cases of Grass sickness are restricted to Northwestern Europe and South America with the highest incidence in the UK, in some parts of Eastern Scotland 1% of horses die annualy from the disease. Young animals, '''2-7 years''' old are predisposed.

Cases of Grass sickness are restricted to Northwestern Europe and South America with the highest incidence in the UK, in some parts of Eastern Scotland 1% of horses die annualy from the disease. Young animals, '''2-7 years''' old are predisposed.

The disease occurs in warm wet weather with peak incidences in spring and autumn. Affected horses usually live at pasture, those that have moved pasture within the preceeding two months are also at greater risk. In many cases the disease appears to be related to specific pstures or fields with a history of grass sickness affected horses, however it has been reported in animals with none of the usual risk factors.   

The disease occurs in warm wet weather with peak incidences in '''spring''' and '''autumn'''. Affected horses usually live at pasture, those that have moved pasture within the preceeding two months are also at greater risk. In many cases the disease appears to be related to specific pstures or fields with a history of grass sickness affected horses, however it has been reported in animals with none of the usual risk factors.   

==Diagnosis==

==Diagnosis==

Ante-mortem diagnosis of the disease is difficult because changes are confined to the gastro-intestinal tract. However the combination of a supportive history and clinical signs is strongly suggestive of grass sickness, definitive diagnosis is made on ileal biopsy or at post mortem examination.

Ante-mortem diagnosis of the disease is difficult because changes are confined to the gastro-intestinal tract. However the combination of a supportive history and clinical signs is strongly suggestive of grass sickness, definitive diagnosis is made on '''ileal biopsy''' or at post mortem examination.

    

    

===Clinical signs===

===Clinical signs===

[[Category:Intestine_-_Functional_Obstruction]][[Category:Horse]]

[[Category:Intestine_-_Functional_Obstruction]][[Category:Horse]]

[[Category:Medical_Colic_in_the_Horse]][[Category:To_Do_-_lizzyk]]

[[Category:Medical_Colic_in_the_Horse]][[Category:To_Do_-_lizzyk]]