Internal Rotation Dysfunction (IRD)—commonly seen at the shoulder (e.g., GIRD in overhead athletes) or hip—responds very well to physiotherapy-led management. A physiotherapist plays a central role in assessment, correction of movement deficits, pain relief, and long-term functional restoration. Role of Physiotherapy in Internal Rotation Dysfunction 1. Comprehensive Assessment 2. Pain & Inflammation Management 3. Restoration of Internal Rotation Mobility 4. Soft Tissue Release 5. Muscle Balance & Strengthening 6. Motor Control & Movement Re-education 7. Posture & Ergonomic Correction 8. Sport- or Activity-Specific Rehabilitation 9. Education & Prevention