DEAR DOCTOR K: After my last mammogram, the doctor told me I have dense breasts. Does this increase my risk of breast cancer?
DEAR READER: A woman's breast contains different types of tissue, including fat. Women with dense breasts have relatively less fat in their breasts. Specifically, if more than 50 percent of your breasts is made up of other breast tissue (as opposed to fat), then by definition you are said to have "dense breasts." It's not uncommon: About 40 percent of women have dense breasts.