The recurring Pokémon Center nurse in the Pokémon TV series is Nurse Joy.
Nurse Joy and other members of her family operate Pokémon Centers across the Pokémon world. Their role is to heal injured or exhausted Pokémon and provide Trainers with a safe place to rest. The anime presents many Joys as visually similar, although individual versions can have different personalities and responsibilities.
Viewers sometimes confuse Nurse Joy with Officer Jenny, another recurring character family. Officer Jennys are associated with law enforcement, while Nurse Joys work at Pokémon Centers. Chansey and, in later regions, other helper Pokémon often assist Nurse Joy with medical care. The repeated appearances of Joy and Jenny became a distinctive convention of the television series, reflecting the games’ recurring services while expanding them into recognizable anime characters.