What is a mammogram?

A mammogram is the most effective way to find breast cancer early, up to 2 years before the lump is even large enough to feel. A mammogram is a special kind of x-ray of your breasts. The amount of radiation used in the x-ray is very small.

Mammograms detect cancer because cancer is denser (thicker) than the normal part of the breast. A radiologist will look at the x-rays for signs of cancer or other breast problems.