What is the title of House M.D. episode 21 in season 1?

Season 1, episode 21 of House M.D. is titled “Three Stories.”

The episode first aired on May 17, 2005, and uses a distinctive structure: House presents three teaching cases to medical students. The stories initially appear separate, but the episode gradually reveals how one case connects directly to House’s own chronic leg pain and medical history.

“Three Stories” is widely regarded as one of the series’ landmark episodes because it moves beyond the usual hospital mystery format. It also explains important elements of House’s character, including his limp, pain, and dependence on medication, without presenting his history in a straightforward chronological narrative.

The episode earned major recognition, including an Emmy Award for Outstanding Writing for a Drama Series for David Shore. It is sometimes confused with the pilot because both establish House’s philosophy, but “Three Stories” is a later first-season episode.