Our thoughts are with those affected by the tragedy of Hurricanes Harvey and Irma. The Red Cross is providing multiple avenues to aid the thousands affected by the storm.

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Pre-menopausal women, especially women who have never been pregnant, may have dense breast tissue. These are normal dense breasts. Because fatty breasts are easier for a mammogram to see through, dense breast tissue can sometimes hide outlines of areas that need closer study. If a particular area needs a better image, an ultrasound is usually the next step.