Musculoskeletal (MSK) disorders are very prevalent in a rehabilitation setting. These disorders involve muscle, tendon, ligaments, as well as nerves, and are related to overuse due to work or sports, and degeneration due to aging. These conditions are usually diagnosed based on clinical signs and symptoms; however, a more accurate diagnosis is required. The imaging techniques for diagnosis include radiography, magnetic resonance imaging (MRI), and ultrasounds (US). In this review article, US is proposed to be an effective technique in diagnosing MSK pathologies, which, in hands of a Rehabilitation specialist, constitute a dynamic, accurate, economic, and cost-effective tool.