imulation-based medical education (SBME) has revolutionized training n both undergraduate and graduate medical education. Over the past 2 ecades, SBME has been used and studied by the specialties to provide linical training, reduce medical errors, and improve patient safety. In the 1970s and 1980s, simulation-based training was primarily computer rogram screen-based learning or low-fidelity task trainer airway and ardiopulmonary resuscitation skills practice. The cardiac auscultation mankin “Harvey” and the anesthesia manikin “Sim One,” developed at the niversity of Southern California, were the forefathers of modern-day igh-fidelity simulators. In the last 10 years, more sophisticated full-body anikins have been developed and a wider variety of partial task trainers ave been designed to teach specific procedures requiring high levels of kill. Simulation-based medical education in its modern form enables rainees to practice and perfect high-stakes procedures that may only arely occur in the clinical setting without any risk to patients. This article ffers an overview of the current uses of SBME in internal medicine (IM) raining for medical students, residents, fellows, and attending physicians long with future possibilities for the use of SBME in IM.