What is Mammography?

This exam uses low-dose x-rays to make a picture of breast tissue. The picture is called a mammogram.

The United States Preventive Services Task Force recommends that women aged 50 and older get a mammography every 2 years. Women who are at high risk for breast cancer (eg, have a family history) may need to have mammograms starting at an earlier age and more often. Most organizations in the US and Canada recommend regular screening. There are differences of opinion among these groups, such as when to start and the time between screenings. Talk to your doctor about what is best for you.

• Detect breast cancer

• Identify changes in the breast tissue before a lump can be felt

• Find a lump's location before a biopsy or surgery

Mammogram Showing the Growth of a Breast Mass © 2009 Nucleus Medical Media, Inc.

Call Your Doctor

After the test, call your doctor if any of the following occurs:

• Changes in a breast, including a lump or thickening
• Skin discoloration or discharge from the nipple