Meniscus Tear vs Arthritis: What’s Causing Your Knee Pain?

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.