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139 bytes added ,  19:34, 10 August 2010
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* Grade 1) Involves the mucosa only.  
 
* Grade 1) Involves the mucosa only.  
 
* Grade 2) Mucosal and submucosal tears
 
* Grade 2) Mucosal and submucosal tears
Grade 3) Tears involving the muscularis. Only the serosa is intact
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* Grade 3) Tears involving the muscularis. Only the serosa is intact
Grade 4) Complete tear with leakage of faecal material into the abdomen
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* Grade 4) Complete tear with leakage of faecal material into the abdomen
    
==Clinical signs==
 
==Clinical signs==
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Many rectal tears occur unknown to the examiner. The first indication that a tear has occurred may be the presence of fresh blood on the rectal sleeve following rectal examination. The veterinarian may be aware of a sudden release in pressure or increase in space when performing rectal examination.
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Many rectal tears occur unknown to the examiner. The first indication that a tear has occurred may be the presence of fresh blood on the rectal sleeve following rectal examination. The veterinarian may be aware of a sudden release in pressure or increase in space when performing rectal examination. Other clinical signs indicative of a rectal tear may include passage of haemorrhagic faeces, straining to defecate and signs of colic.
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