Continuity: At the very end of the episode, House enters the conference room and stands up in front of the whiteboard talking to his team. When he first enters, the board is full of writing, then in the next shot there are only a bit of marks here and there.

Continuity: When House writes "temporary psychosis" and circles it on the white dry erase board, both the words and circle change repeatedly in the following shots.

Continuity: House puts down his Gameboy with the cover up and reaches for his vicodin. A couple of seconds of Foreman looking at House and the shot returns to House, as he is still getting his pills, but now the Gameboy's cover is down.

Continuity: Foreman is doing a sonogram of Mary's brain. As she comes out of her absent seizure Foreman's probe jumps from the left side of Mary's head to her right.

Continuity: When the young swimmer is about to dive, you get a close-up of both her heels going over the edge. Then, it shows a further shot with only one heel over the edge. Later in the same scene, the girl is underwater and you see her hair flowing around her face. When she lifts her head out of the water, her hair is tied up.

Factual error: Season 2 Episode 1 - Acceptance: When they do the MRI on the death row guy, House says that the ink will get sucked out due to the strong magnet. This is incorrect; the only thing that can happen is a bit itchiness or skin irritation.

Continuity: In Season 2 in the episode "Failure to Communicate," when the scene starts with Stacy and House in the airport about to start talking, she has a pen in her mouth. In the very next shot, it's on her ear, where it stays for the remainder of the conversation.

Plot hole: When Wilson does an ultrasound to check for cancer in Alex' ovaries he fails to notice the fact that she doesn't have a uterus. If he mistook her bladder for her uterus, which sometimes happens, she would have appeared to be missing her bladder instead. Yet Wilson doesn't pick up on anything being missing.

Continuity: In Season 2, Episode 17 - "All In", the young patient goes into respiratory arrest. You see the doctors remove the pillow from underneath his head to put the breathing tube in, but in the next shot, the pillow is back.

Continuity: About 5 minutes in, when Foreman struggles with opening the coffee package, House rips the entire top of the package off with his teeth. In the following shots, you can see that the coffee package merely has a corner ripped off.

Continuity: In the episode "Informed Consent" (Season Three, Episode Three), House is about to inject Ezra Powell (Joel Grey) with what is supposedly a lethal dose of morphine. In the shots where they pan out to show House addressing the room at large, the syringe is very full, almost completely. When they zoom in on House holding the syringe, it is only filled a fraction of that much - maybe a quarter to a third. This doesn't happen just once, but every time they switch between shots.