What phrase about patients’ honesty is a recurring motto in House M.D.?

“Everybody lies” is a recurring motto about patients’ honesty in House M.D.

House uses the phrase to express his belief that patients routinely omit, distort, or conceal information. In the show’s diagnostic stories, those omissions can hide an exposure, habit, medication, relationship, or other clue that changes the diagnosis. The phrase therefore functions as both a character belief and a storytelling device.

It does not mean that every patient is deliberately malicious. House often treats ordinary embarrassment, fear, privacy, or incomplete memory as forms of concealment. His team must compare statements with symptoms, test results, and physical evidence rather than accepting every account at face value.

The line is closely associated with House, but it is not the series title or a medical law. It also appears in different forms across episodes. The short wording “Everybody lies” is the canonical phrase most strongly identified with the character and show.