Knee pain can be frustrating—especially when you’re not sure what’s behind it. Two of the most common causes are meniscus tears and arthritis. While they can feel similar, they have different origins, symptoms, and treatment approaches.
Meniscus Tear
A meniscus tear involves damage to the cartilage that cushions your knee joint—often from a sudden movement.
Common signs:
Sudden pain after twisting or pivoting
Clicking, catching, or locking sensation
Swelling within 24–48 hours
Pain with bending, squatting, or rotation
Typical cause: Sports injury or abrupt movement
Arthritis
Arthritis is a degenerative condition where the joint cartilage wears down over time.
Common signs:
Gradual onset of pain
Morning stiffness or stiffness after inactivity
Swelling that fluctuates
Pain that worsens with prolonged activity
Typical cause: Age-related wear and tear or chronic joint stress
Key Difference
Meniscus Tear: Usually linked to a specific injury
Arthritis: Develops gradually over time
Why It Matters
Getting the diagnosis right is critical—because treatment differs:
Meniscus tears may benefit from targeted rehab or procedures.
Arthritis is often managed with long-term strategies like strengthening, activity modification, and injections.
When to Get Checked
If your knee pain isn’t improving, is limiting your movement, or includes locking/swelling, it’s worth a proper evaluation.
Early diagnosis can help you avoid worsening damage and get back to moving comfortably.