In House M.D., Gregory House commonly carries a cane.
House uses the cane because of chronic pain and impaired mobility in his right leg. The condition follows an infarction in the quadriceps muscle, which led to the removal of dead tissue and left him with a permanent limp. His cane is therefore both a medical aid and one of the character’s most recognizable visual traits.
The prop also has dramatic meaning. House often uses it to create distance, signal impatience, or emphasize his physical discomfort. The cane appears in many scenes at the hospital and becomes part of the character’s silhouette, much like his unconventional diagnostic methods and sarcastic manner.
A cane is not the same as a simple walking stick in the show’s context: House uses it as a mobility aid. His leg injury, dependence on pain medication, and attempts to manage chronic pain are recurring story elements. The cane is also why viewers often associate House with a limp, even when the plot focuses on another patient’s illness.