Continuity mistake: Season 5-9, Episode: My Half-Acre. While Cox and Carla are telling Mrs Wilk about her treatment, the cardigan she is wearing is completely unbuttoned. When the camera goes for a closeup of her face, the cardigan is now buttoned right up to her neck.
Continuity mistake: When Turk is talking to someone about the teenager getting breast implants, in the first shot you can see he is talking to someone in a a blue shirt with a stethoscope - i.e. JD. However after this shot, JD has vanished and the conversation is suddenly with Todd.
Continuity mistake: While J.D. and Carla are visiting Mrs Wilks near the start she has a tray of food and a bit of paper next to the tray in front of her. In shots of J.D. and Carla the table in front of Mrs Wilks where the food was is completely clear and the food and paper keep reappearing between shots.
Continuity mistake: When Turk and Elliott are in the line at the cafeteria, you can see that Turk has two plates on his tray and Elliott has a juice box on her tray. When they turn around at the end of the line Turk has just one plate on his tray and the juice box on Elliott's tray is also gone.
Continuity mistake: When JD's Dad arrives at the apartment, and sits down to drink a beer, from straight on his jacket is open and his tie is draped to the right. When the shot cuts to a view from the side, his jacket is now open much less, and the tie hangs straight down his shirt.
Continuity mistake: Season 5-24, Episode: My Transition (1). The first time we see J.D. and the flyer about his deck, the flyer has a picture of J.D. looking straight ahead smiling and the writing on it reads "Old? Gay? Like Decks?" After J.D. rips the flyer off and shows it to the janitor, the picture of J.D. has changed to him giving a thumbs up and the writing has also changed to "Come and Chill at my big gay deck."
Continuity mistake: After J.D.and Julie take their picture with the old people masks and have taken them off, there are a lot of pieces from the mask still on their face. When J.D. has finished his small speech you can most of the bits from both of their faces has disappeared, with J.D's more noticeable than Julie's.