evidence: Breast cancer cases haven’t doubled in U.S. women under 45, despite social media claims [...] Factually inaccurate: The numbers published by the American Cancer Society aren’t comparable between 2022 and previous years, as they include different age groups. The figures don’t suggest that breast cancer cases have doubled in women under 45. [...] The TikTok video focused on a table provided by the ACS that included the projected cases of female breast cancer for women under 45 in the U.S. However, the video didn’t explain that this was a projected figure rather than actual cancer cases. It went on to highlight that the figures produced by the ACS remained at approximately 26,500 cases each year between 2019-2021.