Tendinopathy vs Tendinitis vs Tendinosis – What’s the Difference?

Have you ever had nagging tendon pain?, you’ve probably heard terms like tendinitis, tendinosis, or tendinopathy. These terms are often used interchangeably but what do they actually mean?

Tendinitis = Inflammation of a tendon
It’s usually caused by a sudden injury or overuse. It’s short-term and painful, with swelling and warmth. Think of it as an “angry” tendon.

Tendinosis = Degeneration of a tendon
This happens over time when a tendon doesn’t heal properly. There’s no swelling—just stiffness, weakness, and long-term discomfort.

Tendinopathy = Umbrella term for any tendon problem
Used when it’s unclear whether it’s inflammation or degeneration—or a bit of both.

Why does it matter?
Because each condition needs a different approach.
• Tendinitis? Rest and reduce inflammation.
• Tendinosis? Rehab and strengthen the tendon.
•  Tendinopathy? A balanced treatment plan tailored to your symptoms.