What is the name of House’s fictional leg injury in House, M.D.?

House’s fictional leg injury in House, M.D. is a quadriceps infarction. The condition damaged muscle in his right thigh and left him with chronic pain and a limp.

In the series’ backstory, House suffered the infarction after a blood clot cut off circulation to the quadriceps muscle. He initially received a misdiagnosis and later refused amputation, leading to surgery that removed dead muscle. The resulting damage explains his cane, limp, and dependence on pain medication.

The injury is not simply a broken bone or a routine sports problem. An infarction occurs when tissue dies because its blood supply is blocked. In House’s case, the affected tissue was muscle in the thigh. The show uses the injury as both a medical mystery and a lasting source of character conflict.

House’s chronic pain contributes to his Vicodin dependence, which becomes a major storyline. The cane also becomes a visual symbol of his physical vulnerability and his refusal to hide it. Medical details in the series are dramatized for television, and House’s exact history is revealed gradually through flashbacks and dialogue.