In House M.D., which medical specialty did Gregory House practice alongside nephrology?

Gregory House practiced infectious disease alongside nephrology in House M.D. His dual specialties help explain why he is portrayed as unusually capable of connecting systemic symptoms, infections, organ failure, and rare conditions.

House’s professional background is part of the show’s central premise. He is not simply a general practitioner; he is a board-certified diagnostician whose training allows him to investigate cases that cross conventional specialty boundaries. The series often uses his knowledge of infections and kidney disorders to challenge the first diagnosis.

Nephrology concerns the kidneys, their diseases, and related fluid and electrolyte problems. Infectious disease focuses on illnesses caused by pathogens such as bacteria, viruses, fungi, and parasites. Both fields can involve complex, whole-body symptoms, making them useful foundations for a diagnostic physician.

Viewers sometimes identify House only with diagnostic medicine, but that is his hospital department rather than one of the two specialties associated with his medical training. The show repeatedly treats infectious disease and nephrology as his formal areas of expertise.