This article is reviewed by an Orthopaedic Trauma & Sports‑Medicine Physician - Department of General Surgery - Vinmec International General Hospital Phu Quoc. A torn tendon is an injury that occurs when a muscle is overstretched, causing a partial or complete tear of that muscle group. One of the most commonly affected sites is the hamstring tendon at the back of the thigh.

The shoulder joint is among the most frequently used joints in the body and is the primary structure enabling the action of lifting the arm. Therefore, pain in the arm along with the inability to raise it usually relates directly to injuries in this region. In modern medicine, lesions around the shoulder–arm region are collectively referred to as rotator‑cuff syndrome. Learning the basic information can help patients prevent and manage it effectively.