Rotator cuff tendonitis is an inflammation of a group of muscles and tendons that attach to the bones of the shoulder together with an inflammation of the bursa (smooth layer). This condition usually occurs over time. It can be the result of keeping your shoulder in one position for a while, sleeping on your shoulder every night, or participating in activities that require lifting your arm over your head one of the tendons is torn from the bone from overuse or injury.

Athletes playing sports that require lifting their arm over their head commonly develop rotator cuff tendinitis. This is why the condition may also be referred to as:

• Swimmer’s shoulder
• Pitcher’s shoulder
• Tennis shoulder

Symptoms:
• RC tears or injury are not always associated with pain or loss of function
• Pain in shoulder lateral aspects of shoulder with referred pain down and upper arm
• External and internal rotation
• Muscle weakness
• Difficult in lifting, pushing