Mammograms are low-dose x-rays of the breast. Regular mammograms can help find breast cancer at an early stage, when treatment is most likely to be successful. A mammogram can often find breast changes that could be cancer years before physical symptoms develop.

When you get a mammogram, a technician will place your breast on a platform and a plastic plate will press it flat to get a clear picture. Usually, the technician will take 2 pictures of each breast — 1 from above and 1 from the side. This part of a mammogram can be uncomfortable, but it usually only lasts 10 to 20 seconds.