My Border collie Bandit is 7 1/2 yrs old. About a month ago on the beach, he would raise his back left leg, and run on 3 legs.
Since then, he only raises leg if he is trying to run fast. He does not do it when he is walking, walking fast, or trotting.
He never acts like he is in pain.
I started him on glucosamine/condroiten.
He maybe had his tail once broken before we teamed up when he was one yrs old. he has a kink in his beautiful tail.
a vet tech had once told me he might be prone to arthritis in the future. that was 6 yrs ago.
ML