Transition medicine is the purposeful, planned movement of adolescents and young adults from child-centered to adult-oriented health care systems. Its goal is to maximize lifelong functioning and potential by providing high-quality, developmentally appropriate health care services that continue uninterrupted as the individual moves from adolescence to adulthood. This active process involves setting a transition policy, tracking and monitoring transition steps, assessing readiness for transition, planning transition by filling gaps in knowledge and readiness, transferring care, and completing transition. There are many resources available to providers to learn this process and complete the necessary steps. Additionally, many web sites offer guidance for youth and families.