They're known for hip problems. Ours are doing well so far. We try to keep them in shape, the extra weight can cause hip issues. We've gotten 9.5 lbs off of Rupert as of this past Saturday. He's 94.5 right now, I'll get him down to 90 by the end of the summer, which believe it or not would be what the vet suggested as he is such a huge Lab. We fed him puppy food too long and were dumb enough to feed him what the bag told us to.