Which two specialties are associated with Gregory House’s medical expertise?

Gregory House’s medical expertise is associated with nephrology and infectious disease. In House M.D., he leads a diagnostic team while being identified professionally with both specialties.

Nephrology concerns the kidneys, kidney function, and related disorders. Infectious disease focuses on illnesses caused by bacteria, viruses, fungi, parasites, and other infectious agents. The combination gives House a broad clinical foundation for investigating puzzling symptoms across multiple organ systems.

House’s department is Diagnostic Medicine, an unusual fictional structure designed to support the show’s format. Patients typically arrive after other doctors have failed to identify a cause, and House’s team tests competing explanations until it reaches a diagnosis.

The show often dramatizes House as an almost encyclopedic diagnostician, but that does not mean he is formally a specialist in every field represented in an episode. Surgeons, neurologists, oncologists, and other consultants appear when a case requires their expertise. His named specialties are therefore distinct from the broad scope of his diagnostic work.