is the fourth episode of the fifth season of the medical drama House , which originally aired on October 14, 2008 . It is highly regarded by fans for its deep character development, particularly regarding the complex relationship between Dr. Gregory House and Dr. James Wilson. Plot Summary The episode follows two parallel storylines:
: House takes a DNA sample from his father's corpse during the funeral and confirms his long-held suspicion: John House was not his biological father. House_-_S05E04_-_Birthmarks
: The patient's condition was caused by iron pins that her birth parents had driven into her skull as an infant. These pins shifted when she was near a magnetic Buddha statue, causing her symptoms. Cast & Credits House Rewatch - Season 5 Episode 4 is the fourth episode of the fifth season