Dealing with high-density breasts

The FDA may require mammography facilities to notify patients about this breast cancer risk factor, but women don't know what to do with this information.

Do you know how dense your breasts are? If you don't, a new proposal by the FDA may mean you will soon find out.

The agency proposed a change that, if approved, will require mammography facilities to send letters informing women about their breast density — a measure of the proportion of active tissue versus fat in their breasts (see "The FDA proposal").