Tendinitis Causes

The most common cause of tendinitis is overuse and repetitive motion from recreational, athletic, or occupational activities.

These are some of the more common forms of tendinitis:

• Medial epicondylitis (also known as golfers elbow, baseball elbow, suitcase elbow) - Caused by forceful wrist flexion and pronation injuring the tendons that attach to the medial epicondyle of the humerus
  
  
• Lateral epicondylitis (tennis elbow) - Caused by continued stress on grasping muscles of the hand on rotation so the forearm faces upward or forward
  
  
• Rotator cuff tendinitis (swimmer's shoulder, tennis shoulder, pitcher's shoulder) - Caused by sports that require movement of the arm over the head repeatedly causing inflammation on the rotator cuff-a group of muscles that control shoulder rotation
  
  
• Peripatellar tendinitis (jumper's knee) - Caused by repetitive jumping, running, or cutting
  
  
• Popliteus tendinitis - Caused by downhill running or walking
  
  
• Achilles tendinitis - Caused by downhill running
  
  
• Trauma or thermal injury to the tendon
  
  
• Evidence of a strong association between the fluoroquinolone antibiotics and tendinitis