Feline Arthritis: The 2026 Guide to Diagnosis, Treatment & Pain Management

Feline arthritis, clinically known as osteoarthritis or degenerative joint disease (DJD), is a progressive and painful condition affecting a vast number of cats, especially seniors. It remains critically underdiagnosed because cats are masters at concealing discomfort. Early recognition and a proactive management plan are essential for preserving your cat's mobility and quality of life.

Understanding Feline Arthritis

What Is Arthritis?

Arthritis is a degenerative condition involving the breakdown of the protective cartilage within joints. This cartilage acts as a cushion, allowing bones to glide smoothly. As it deteriorates, bone-on-bone contact causes inflammation, pain, stiffness, and reduced mobility.

Types of Arthritis in Cats

Osteoarthritis (Degenerative Joint Disease)

• Most common type (wear-and-tear)
• Develops gradually; age is a primary risk factor
• Affects an estimated 60-90% of cats over 12 years old

Traumatic Arthritis

• Results from a past joint injury (fracture, dislocation, ligament tear)
• Can develop immediately or years after the initial trauma

Inflammatory Arthritis

• Caused by immune-mediated disorders or infections (bacterial, viral)
• Less common but requires specific treatment approaches

Commonly Affected Joints

Arthritis frequently impacts:

• Hips (often related to hip dysplasia)
• Knees (especially if previously injured)
• Elbows & Shoulders (common in heavier cats)
• Spine (vertebral arthritis is extremely prevalent)
• Ankles (Hocks)

Prevalence and the Diagnosis Gap

Modern research confirms feline arthritis is widespread:

• 30% of all adult cats show signs.
• 60-90% of cats over 12 have radiographic evidence.
• 90% of cats over 15 have at least one affected joint.

Despite these statistics, it is often missed because symptoms develop subtly, and owners may mistakenly attribute changes to "normal aging."

Causes and Risk Factors

• Age: Natural cartilage wear and decreased joint lubrication.
• Breeds like , , and may have predispositions.