Arthritis is thought to affect up to 90% of cats over 12 years of age, yet it remains largely undiagnosed and untreated in our feline population. Why? Because cats are very good at hiding their pain. If your cat isn’t going out as much as she used to or perhaps now has a hard time jumping up on the bed, speak with your vet about the possibility of arthritis and consider both medical treatments and environmental modifications that could significantly improve her quality of life.