House M.D. broadcast 177 episodes across its eight-season run. The total includes the regular episodes aired from the 2004 premiere through the 2012 series finale.
Episode totals can be confusing because television databases may count specials, unaired pilots, international broadcasts, or retrospective programs differently. The commonly cited series total for House M.D. is 177 regular episodes, while “Swan Song” is a separate retrospective special associated with the finale.
The show’s format changed over time, but its central structure remained recognizable: a difficult case, competing hypotheses, tests, and a final explanation. The episode count therefore measures the complete fictional series rather than the number of patients House treated or the number of cases solved by his department.