evidence: 1. Screening mammograms do not reduce death from breast cancer There is no reliable evidence that having a screening mammogram reduces death by breast cancer on a population basis. The Cochrane Collaboration reached this conclusion after taking a good look at the original randomized trials. A recent Canadian trial, considered the best mammography trial, supported this finding for women aged 40 to 59. This is important evidence that needs careful consideration. [...] There are significant harms associated with mammography screening and no reliable evidence of benefit. It is time to discontinue routine mammograms for all healthy women of a particular age. Resources should be shifted toward surveillance of women at higher risk for breast cancer, diagnostic workup for women with a change in their breast that does not go away and for ensuring that women receive timely treatment for a confirmed invasive breast cancer.