Arthritis refers to inflammation and degeneration of one or more joints. It is an umbrella term used to describe more than 100 medical conditions affecting the joints. The most common type of arthritis seen in pets is osteoarthritis, also known as degenerative joint disease. Osteoarthritis occurs when the protective cartilage that cushions the ends of bones begins to break down. https://www.newsstatix.com/managing-companion-animal-arthritis-at-home/