Jin's handcuff has mysteriously disappeared in this episode.
At the end of the episode there is a long shot of Jack, and the bandage is on his right arm instead of his left, as it is for the rest of the episode.
The baby boy born has a fully healed circumcision despite being seconds old.
After Claire's baby is born, when Jack speaks to Kate, he says, "It's a beautiful healthy baby," and in the next shot, facing Kate, Jack is still speaking, but nothing is heard.