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Tendonitis  
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Definition  

Tendons connect muscle to bone and help move joints. Tendinopathy is an injury to the tendon. These injuries tend to occur in tendons near joints such as knee, shoulder, and ankle. The injuries can include:

  • Tendonitis—An inflammation of the tendon. Although this term is used often, most cases of tendinopathy are not associated with significant inflammation.
  • Tendinosis—Microtears in the tendon tissue with no significant inflammation.

The following tendons are often involved:

Tendinopathy and the associated pain may take months to resolve. You may need medication for pain relief.

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Causes  

Tendinopathy is caused by overuse of a muscle-tendon unit. The strain on the tendon causes very tiny tears that accumulate over time. There can also be inflammation.

These tears cause pain and can eventually change the structure of the tendon.

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Risk Factors  

Tendinopathy is more common in women than in men. Factors that may increase your chance of getting tendinopathy include:

  • Overuse can be the result of doing any activity too much
  • Strenuous or repetitive activities
    • Sports
    • Physical labor
    • Housework
  • Physical problems
    • Muscle imbalance
    • Decreased flexibility
    • Overweight
    • Advancing age
    • Alignment abnormalities of the leg
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Symptoms  

Symptoms may include:

  • Pain in the tenon or surrounding area, particularly with activity
  • Decreased motion