Shoulder conditions refer to various issues affecting the shoulder joint, which can lead to pain, stiffness, and reduced mobility. Common conditions include rotator cuff injuries, tendinitis, and frozen shoulder. These problems can arise from overuse, injury, or age-related wear and tear. Diagnosis typically involves a physical examination and imaging tests like X-rays or MRI. Treatment options may include rest, physical therapy, medications, or, in severe cases, surgery. Early intervention is crucial for effective management and recovery from shoulder conditions.