More mammograms mean more problems for older women, study finds

The American Cancer Society advises all women over 40 to get a mammogram once a year to screen for signs of breast cancer. The U.S. Preventive Services Task Force, a panel of experts that advises the federal government on health matters, says most women need to get mammograms only once every two years, and only when they’re between the ages of 50 and 74.

By Karen Kaplan

February 6, 2013