Question: what are the causes of arthritis in dogs?
Answer: Injury to Ligaments. Ligament damage is a very common cause of arthritis. ... 
Joint Instability. Certain dogs are predisposed to a variety of joint instability issues that can lead to arthritis over time. ... 
Cartilage Issues. ... 
Joint Infection. ... 
Autoimmune Disorders. ... 
Do you see potential signs of arthritis in your dog or cat?