[Lara's mom]

Does anybody know why a Border Collie (9 years old) would all of a sudden become aggressive toward other dogs in the family? My cousin has young grandchildren that she babysits for and she's really concerned that the dog may become aggressive toward the children. She's afraid for the other dogs and for the grandchildren. The family is considering having her PTS. She would be very grateful for any suggestions that she could try before taking this horrible step. I know she'd try anything she could do herself. She can't afford a professional trainer. Any help would be appreciated.

[lulusmom]

There are a number of medical conditions that can be the root cause of sudden behavioral changes. I think it would be wise for your cousin to have her furbaby checked out thoroughly by a vet. A senior panel, including thyroid panel, is a good start.

[Yogi]

as lulusmom noted, it is something that should be done anytime a dog changes its behavior. A vet check after 6 to 7 should be done if not yearly every 6 months to ensure there are no hidden issues with hopes to catch them early if there are. Also, at 9, your are talking about a dog breed that is in early stages of senior years. Too much noise commotion etc can wear on it. How active has the dog been up til this episode?

[sandyh]

i agree i think it could be something medical.

[Lara's mom]

Thanks guys! I just called her and she's made an appointment with the vet. Hopefully, it isn't anything serious. Bandit is a lovely dog!!!