The Irish midfielder underwent a hernia operation just over a fortnight ago, and is back in contention for the trip to Everton this weekend.
"We'll see for a reaction but as long as there isn't one he'll come straight back in the squad. It's quite remarkable what they can do to fix what is labelled as a hernia," Bruce told reporters.
"Robbie has trained this week which just goes to show what the medical people can do. It's just over two weeks since the operation.
"To be playing in two and a half weeks shows what they can do, he's pain free and running around like a two-year-old so let's hope he stays like that."
Brady is the Tigers' top scorer this season alongside Sone Aluko, with three goals.