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The reason why there is blood on your dogs rear end is becaues he might

have eaten something that is not well for a dog. Or it might be because

he has a kidney infection in witch causes the kidney to draw blood.

If this continues you would need to get to a Vet Technition in wich specializes.

in the central orgin also known as the kidney.

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If is a she,she mite b having her period

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15y ago

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