
Shoulder Tendinitis

Shoulder tendinitis is the inflammation or irritation of one of the tendons in the shoulder, most often affecting the rotator cuff tendons or the biceps tendon. It commonly develops from repetitive overhead movements, sports injuries, or age-related wear and tear. Tendinitis can cause pain, swelling, and stiffness that worsen with activity. If left untreated, it may progress to chronic tendinopathy or even a tendon tear.
Diagnosis of Shoulder Tendinitis
Shoulder tendinitis is typically diagnosed by:
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Medical history review (work, sports, or activities involving overhead motions).
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Physical exam testing for painful arcs of movement, tenderness, and weakness.
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Range of motion assessments to identify limitations caused by inflammation.
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Imaging such as ultrasound or MRI to confirm tendon inflammation and rule out partial or complete tears.
Treatment for Shoulder Tendinitis
Physical therapy is one of the most effective treatments for shoulder tendinitis. A customized program may include:
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Manual therapy to improve blood flow and reduce muscle tension
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Stretching routines to restore flexibility in the rotator cuff and surrounding muscles
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Strengthening exercises to build shoulder stability and prevent recurrence
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Postural retraining to correct mechanics that strain the tendons
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Pain management techniques such as ice, heat, or ultrasound therapy
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Education on modifying activities and avoiding repetitive strain
In severe or persistent cases, injections or surgical options may be considered, but most patients improve significantly with physical therapy.
Symptoms of Tendinitis
Common signs of shoulder tendinitis include:
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Dull, aching pain in the shoulder that worsens with movement
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Pain when lifting the arm overhead or reaching behind the back
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Stiffness and reduced mobility in the shoulder joint
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Tenderness or swelling around the front of the shoulder
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Night pain, especially when lying on the affected side
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Weakness when lifting or rotating the arm
Prevention of Shoulder Tendinitis
To reduce the risk of shoulder tendinitis:
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Warm up and stretch before sports or heavy activity
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Avoid repetitive overhead motions without rest
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Strengthen rotator cuff and upper back muscles regularly
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Maintain good posture at work and during exercise
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Use proper form when lifting weights or performing athletic movements
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Address shoulder pain early before it worsens into chronic tendinopathy
