Mammograms are X-ray images of the breast used to detect cancer before it can be felt. Recommendations vary by country: some start routine screening at 40, others at 45 or 50, with intervals of one to three years and an upper age commonly around 74. The differences reflect how each programme balances benefits against false alarms and overdiagnosis.
Women with a strong family history, known genetic mutations such as BRCA, or previous chest radiotherapy are at higher risk and may be offered earlier screening, more frequent imaging, or additional MRI. A doctor can assess your personal risk and recommend the right schedule.
Screening does not replace awareness of your own body. Report any new lump, skin change, nipple discharge, or change in breast shape to a doctor promptly, even if your last mammogram was normal. Early evaluation of new symptoms is important regardless of screening timing.