In obstetrics/gynecology and preventive medicine, breast cancer screening theory rests on age-stratified population risk and a distinction between average risk and elevated relative risk, with the latter determined by identifiable factors such as inherited genetic mutations (BRCA1/2), personal or family cancer history, breast tissue density, and cumulative estrogen exposure. Screening guidelines (initiation age, imaging modality, and testing eligibility) are derived by applying these risk categories, reflecting the principle that preventive screening intensity should scale with an individual's calculated lifetime risk rather than being applied uniformly.
In obstetrics/gynecology and preventive medicine, breast cancer screening theory rests on age-stratified population risk and a distinction between average risk and elevated relative risk, with the la…