There is a lot of confusion about recommendations for breast cancer screening with mammograms. That confusion stems from different recommendations from different organizations. In November 2009, the United States Preventive Services Task Force (USPSTF) issued a new recommendation for mammogram screening every 2 years between 50 and 74 years of age.  This conflicts with American Cancer Society recommendation for screening every year after age 40.

A recent analysis shows that screening every year after the age of 40 saves 71% more lives than every other year screening between ages 50 and 74.