Dr. Jennifer Simmons is a fellowship-trained breast surgeon who comes from a breast cancer family, became a doctor to prevent what her family suffered, and at 46 heard the words herself. It was only then, she says, that she could take off the blinders and ask whether how medicine was treating breast cancer was correct. Her answer is no. The Cochrane Collaboration examined data from a Swedish trial involving more than 600,000 women, in which all participants had equal access to the same care. The exact same number of women died of breast cancer whether they screened with a mammogram or not. Mammogram creates lead time bias, moving the diagnosis earlier without extending life. A woman who would have felt a lump at 65 and died at 70 instead gets diagnosed at 60 and still dies at 70. Her survival looks doubled on paper, but she didn't live a day longer than she would have had it not been for the mammogram. The second problem is overdiagnosis: between 20 and 50% of the time, mammogram identifies cancers that are biologically inactive and would never have caused disease or death over a lifetime. Autopsy studies of women who died of other causes between ages 20 and 50 consistently find microscopic evidence of cancer in breast tissue in roughly 1 in 5 women. These women didn't have breast cancer. Of the 4 million breast cancer survivors currently in the US population, Simmons estimates approximately 1.3 million were overdiagnosed and treated unnecessarily, with surgeries, mastectomies, chemotherapy, radiation, and the cardiovascular, neurological, and psychological consequences that follow. The American College of Physicians stated in April 2026 in the Annals of Internal Medicine that at any age, there is no survival advantage to screening with mammogram. Simmons founded Perfection Imaging and opened the first independent center using the CUTI, a circumferential sound wave technology that creates a true 3D breast reconstruction without radiation, without compression, and without pain. It received FDA clearance in 2023. She is also screening tears for inflammatory precursors of breast cancer, identifying biological risk before anything would appear on any imaging. Her book is The Smart Woman’s Guide to Breast Cancer. Her website is perfectionimaging.com. She is at @DrJenSimmons on social media.