American Cancer Society, in a Shift, Recommends Fewer Mammograms
▻http://www.nytimes.com/2015/10/21/health/breast-cancer-screening-guidelines.html
The changes reflect increasing evidence that mammography is imperfect, that it is less useful in younger women, and that it has serious drawbacks, like false-positive results that lead to additional testing, including biopsies.
But the organization’s shift seems unlikely to settle the issue. Some other influential groups recommend earlier and more frequent screening than the cancer society now does, and some recommend less, leaving women and their doctors to sort through the conflicting messages and to figure out what makes the most sense for their circumstances.