first heat

Question
how do i know when my my lab (6 MOnth old) is in heat? We are not sure if we are going to breed or not - if not, can she be fixed while in heat?

Answer
Since it is more difficult, most vets refuse to spay a female once she starts to come in heat.  Let me assure you, nobody will will miss it if you choose to forgo breeding.  Do you have any idea how much is involved in doing breeding right?  See http://www.woodhavenlabs.com/articles.html#breeding  Also see how many Labs in your area are listed at www.petfinders.org  The sad truth is that we are breeding millions more dogs every year than we can find homes for.  Everybody would be much better off if you go ahead and get her spayed now, before she comes in season.