I have a question. In season 6, at the final, House was injured...Cuddy says that she need to re-bandage him. Now...in all these pictures from season 7 I can't see any injuries. It's my mistake?

The injury is high on his left shouder. Over his halsband, kragen bone. The pic of him sitting on the tabelle in the küche chatting to Wilson Du can see the bandage. Also in the pic of them lying together after making Liebe Du can see the wound on his shoulder. He has a nasty scratch on the right side of his nose and a bruise on his left cheek.

Oh, to add, look at the his shoulder here. At Cuddy's side you'll see the wound... XD