Important health information regarding mammograms. Yes, guys, this is for you too….pass this along to the women you care about. If you are getting a mammogram, it is important that you ask the technician to provide you with the radiation shield that covers your thyroid. I just learned about this important option from a friend who is trying to raise awareness about. I have never been offered this option in the past, but I am told that the shield is kept in the x-ray room.