Arthritis, particularly osteoarthritis (OA), is the most common cause of joint pain in dogs, especially as they age. Osteoarthritis occurs when the cartilage that cushions the joints breaks down, leading to painful bone-on-bone contact. This condition can affect any joint in the body, but it's most commonly seen in the hips, knees, and elbows.
The breakdown of cartilage results in inflammation, stiffness, and pain, making movement difficult and uncomfortable for your dog. In the early stages, signs of arthritis may be subtle, such as slight limping or reluctance to engage in physical activities. As the condition progresses, your dog may have noticeable difficulty getting up, walking, or climbing stairs.
Arthritis is particularly common in senior dogs, but younger dogs may also develop it due to genetic predispositions or injury. Left untreated, arthritis can lead to more significant joint damage and decreased mobility.