Breast Cancer Screening: If you’ve felt confused about when you should start getting mammograms or how often to have them, you’re not alone. Breast cancer screening guidelines have changed over the years, and it can feel overwhelming to keep up. The goal is simple: to find breast cancer early when it’s easiest to treat. But the “how” and “when” are constantly being refined by experts based on new research. These changes are made to save as many lives as possible while reducing unnecessary tests and anxiety for women.