The first sign that retired accountant Kathey Parcels had torn her left rotator cuff was pain, sudden and acute pain.

Four muscles and their tendons make up the rotator cuff; they smooth arm motion and stabilize the shoulder joint. The supraspinatus, infraspinatus, teres minor, and subscapularis aid the shoulder when ...

For those over 40, it's a common injury with different treatment options to try. Shoulder symptoms led to an average of 9.6 million physician visits in 2015 and 2016 in the United States. The most ...

Medically reviewed by Jennifer Steinhoff, MD Key Takeaways Rotator cuff tears happen when one of the tendons in your shoulder is injured. Warning signs include shoulder pain and trouble lifting your ...