I went to my OBGYN today and while she was going over my history it came up that 4 women in my family have had breast cancer. 2 aunts on my mom's side, 1 aunt on my dad's side and my grandmother on my dad's side. 1 aunt was diagnosed before age 40.

So she mentioned something about genetic testing? She said there is some kinda test that looks for genetic mutations which make you more susceptible to breast cancer?

I already have to start mammograms at age 30 instead of 40. Has anyone ever heard of this or had it done? Does it seem worth it when I'm already doing early testing?