Mammogram

X-Ray, Breast (Mammography)

Risks

A mammogram may appear to detect a cancer even when a cancer is not present (false-positive results). This can occur at any age but is more likely with younger women. False-positive results can lead to emotional distress and unneeded tests and treatments.

Also, a mammogram may detect abnormalities that will not develop into life-threatening cancer. Tests and treatment after this kind of discovery are not needed and can be harmful.

There is always a slight risk of damage to cells or tissue from being exposed to any radiation, including the very low levels of radiation used for this test. But the risk of damage from the X-rays is very low compared with the potential benefits of the test.

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Author:	Sandy Jocoy, RN	Last Updated: February 12, 2009
Medical Review:	Anne C. Poinier, MD - Internal Medicine Deborah A. Penava, BA, MD, FRCSC, MPH - Obstetrics and Gynecology
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