How will you say your adopted child you are not his /her biological parents?

To me I Would tell them as soon as they could understand and then tell them you got to pick them ! was maybe better than haveing your own where you didnt know for sure if you would get a boy are a girl and when you say them you just knew they were for you!

I suppose it is best when they are mature, probably in their teen years, though even that is hard. It's better to just tell them the truth, because if you don't and they find out, it would probably strain your relationship for a while by doing that. Some kids know that they are adopted their whole lives, and I know many that know the truth, they are totally okay with that fact and are pretty happy, that may be the best thing to do as well! It's good that they know, for medical reasons, so they don't go to a doctor and think they have your genetics and medical potential.