Instrument Assisted Soft Tissue Mobilization (IASTM) is a manual therapy technique that uses specialized tools to treat soft tissue restrictions, enhancing healing and mobility. Derived from traditional gua sha, IASTM effectively addresses conditions like tendonitis and scar tissue through targeted techniques, yielding evidence-based clinical benefits. Proper training is recommended for clinicians, and post-treatment care is essential for optimal results, which can include stretching and hydration.