2016 marks the 20th anniversary of the Disabilities of the Arm, Shoulder and Hand (DASH) Outcome Measure. In 1996, when the DASH was developed by the Institute for Work & Health (IWH) and the American Association of Orthopedic Surgeons (AAOS), no measure had previously existed to assess the disability and function of the arm, shoulder and hand as a whole. Today, this outcome measure is used across the world in 55 languages and dialects. It has also been cited in about 1,500 journal articles. The DASHBash year kicks off with this seminar that highlights the achievements of this “little tool that grew.” This presentation reviews the conceptual foundations of the DASH, summarizes how the DASH is being used and how it is performing, and addresses some frequently asked questions from our users.