What is the title of House M.D.’s first-season episode about three patient cases?

“Three Stories” is the House M.D. episode about three patient cases. It is the 21st episode of the first season and was written by David Shore.

The episode uses a framing device in which House gives a lecture to medical students. Instead of presenting one conventional case, he describes three diagnostic puzzles, requiring the audience to compare symptoms, evidence, and competing explanations.

“Three Stories” is especially important because it reveals the history of House’s chronic leg pain and explains why he walks with a cane. The structure also connects House’s personal experience with his approach to diagnosis, showing how suffering and uncertainty influence his medical reasoning.

The episode received major recognition, including the Primetime Emmy Award for Outstanding Writing for a Drama Series. It is often confused with other early episodes such as “The Mistake” or “Histories,” but “Three Stories” is the first-season title tied to the three-case lecture.