In House M.D., what is the name of House’s chronic leg condition?

In House M.D., House’s chronic leg condition is a muscle infarction.

The condition affects the quadriceps muscle in his right leg. A muscle infarction occurs when muscle tissue dies because its blood supply is blocked, and the resulting damage causes House severe, persistent pain and impaired mobility.

House initially receives treatment that includes surgery and pain management. He later relies on Vicodin to control the chronic pain, and his dependence on the drug becomes a major part of the character’s personal and professional conflicts. The story also explains his limp and use of a cane.

The series presents House’s condition as a medical cause of his disability rather than a simple injury. His pain, addiction, and refusal to accept help are separate but connected elements of his characterization. The fictional diagnosis is often confused with a broken leg, but the show identifies the underlying problem as infarction of muscle tissue.