07-22-2016, 01:18 PM
Join Date: Jun 2012
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Need a bit more information.
Is he usually that itchy, or did it start all of a sudden?
Where is the blood coming from?
Has the itching stopped?
If it started all of a sudden, some insect may have stung or bit him and caused it. My old boy got stung by a wasp and would not leave his tail alone, he chewed at it until he had it inflamed and infected, I ended up at the vet with him to get it cleaned and him on antibiotics.
You need to figure out where the blood is coming from and see if it needs medical attention, or is something you can take care of at home.
If he's still itchy he's liable to do more damage to himself, like my old dog did to his tail, so you should at least call the vet and ask if he should be taken in or if there's something you can give him at home to help.