I have 2 Great Danes Sadie Rae almost 10yrs old, Boo Boo 4 yrs old and a yorkie-shu 9 months Mac. Anyways the 4 yr old is always hitting his tail he has split the tip a few times but this time I think he may have broke it. Is there any way I can tell before I go to the vet? He doesn't seem to be in pain, but is uncomfortable when you touch it.

Yes I would have looked for help before going to the Doctor. I did take him to the vet and it is broke but they can't do anything for it. He was not in pain just uncomfortable.