How often should women ages 50-74 have a mammogram according to current guidelines?

How often should women ages 50-74 have a mammogram according to current guidelines?

• A. Every year
• B. Every 2 years
• C. Every 5 years
• D. Every 3 years

Answer: (B)

Biennial screening mammography is recommended for average‑risk women aged 50–74. This interval provides a solid balance between catching cancers early and minimizing harms from over-testing, such as false positives, unnecessary biopsies, and cumulative radiation exposure. Large guideline reviews have shown that screening every two years through this age range reduces mortality with comparable benefit to more frequent screening, while causing fewer unnecessary interventions. If a woman has higher risk factors (for example, a strong family history or known genetic mutations) or very dense breasts, individualized planning may involve additional or alternative methods, but for routine average‑risk care, every two years is the standard. Screening generally continues through age 74, with decisions after that age tailored to the individual.