Tendinopathy

3 things to know first

1. It is usually not a tear. Tendinopathy refers to changes within the tendon, not a full break.
2. It often comes from repetitive activity. Sports, work tasks, or sudden increases in training are common triggers.
3. It usually improves with load management. Reducing or modifying the provoking activity is often the key to recovery.

What it is

A tendon is a strong, fibrous cord that connects muscle to bone. Tendinopathy is a condition in which a tendon becomes painful, swollen, or structurally changed. The term includes a range of changes that were once called tendinitis (inflammation) or tendinosis (degeneration).

Tendinopathy commonly affects the shoulder (rotator cuff), elbow (tennis or golfer's elbow), Achilles tendon, patellar tendon, and hip tendons.

Why it appears on your report

On MRI or ultrasound, a tendon with tendinopathy may look thicker, darker (hypoechoic), or have internal signal changes. Radiologists use this term to describe these imaging features without saying the tendon is fully torn.

How serious is it

Tendinopathy is usually not serious, but it can be persistent:

• Mild cases — may settle within a few weeks with activity modification.
• Moderate cases — can take several months and may need structured rehabilitation.
• Severe or chronic cases — may limit work or sport and occasionally require injections or, rarely, surgery.
• Risk of tear — ongoing, untreated tendinopathy can weaken the tendon and increase the chance of a partial or complete tear.

When to seek care urgently

Seek urgent care if you have:

• A sudden pop in the tendon area with immediate weakness or inability to move the joint
• Marked swelling, bruising, or deformity suggesting a tear
• Signs of infection such as fever, redness, and warmth over the tendon
• Severe pain after an injection near the tendon

What usually happens next

1. Activity modification. Reduce or temporarily stop the activity that triggers symptoms.
2. Targeted exercises. A physical therapist can prescribe eccentric and loading exercises to rebuild tendon strength.
3. Pain relief. Ice, anti-inflammatory medications, or topical treatments may help in the short term.
4. Advanced options if needed. For persistent cases, options may include shockwave therapy, platelet-rich plasma injections, or specialist referral.

A simple analogy

Think of a tendon like a rope that is used repeatedly. With overuse, some fibers fray and the rope thickens or becomes stiff. If you stop pulling so hard and gradually rebuild strength, the rope can recover. If you keep loading it heavily, the damage may worsen.

Further reading

• Mayo Clinic — Tendinitis
• NHS — Tendonitis