My wife has had three. In one breath they say that with her type of cancer any procedure that damages the breast is a place for her cancer to show up. They told us this after she has had at least 6 procedures not including mamograms. Now we choose to make our own decesisions about her treatment and monitor it with MRI mamograms. We educate ourselves. I am not saying that a biospy are not the way to go. Find out all you can before you consent to any procedure that could lead to further complications.