Residency matching is a process that pairs medical school graduates with residency programs in hospitals. This system helps ensure that new doctors receive specialized training in their chosen fields, such as internal medicine or surgery. The matching process typically occurs through a centralized system, where candidates submit their preferences for programs and vice versa. The most well-known residency matching system in the United States is the National Resident Matching Program (NRMP). Participants rank their choices, and an algorithm matches them based on these preferences, ensuring that both the candidates and the programs find suitable placements.