Cat arthritis is a painful condition that can majorly affect your cat’s quality of life, and it can be hard to identify. This disease can be caused by trauma, immune system malfunction, infection, and more, affecting 60 to 90 percent of senior cats. Not only are cats well versed in hiding their pain, but cat arthritis can also manifest differently from cat to cat. As a pet parent, knowing its clinical signs is the first step to getting your feline friend the cat arthritis treatment they need. Common signs of cat arthritis include:Less activity and lower energy levelsLimping or stiff gait Difficulty getting up from a resting positionFavoring one leg over anotherReluctance to jump or climbUnwillingness to engage in playSwollen or sore jointsGrating sound when engaging in movementWasting away of muscle tissueAvoiding pets on certain areas of their bodySudden irritability and aggression