女性到了中年後會被建議每年去做乳房鉬靶檢查（Mammogram）。你會不會擔心X光對身體的危害? 這張圖僅供參考。自然界裏到處存在著天然背景輻射，哪怕隻是在吃一根香蕉。
Mammogram檢查的不同推薦:
At Mayo Clinic, doctors offer mammograms to women beginning at age 40 and continuing annually. When to begin mammogram screening and how often to repeat it is a personal decision.
Mayo Clinic recommends women and their doctors discuss the benefits, risks and limitations of mammograms and decide together what is best. Also consider your personal situation and preferences in making your decision.
Not all organizations agree on mammogram guidelines. For instance, the U.S. Preventive Services Task Force mammogram guidelines recommend women begin screening at age 50 and repeat the test every two years. The American Cancer Society and other organizations recommend screening begin at 40 and continue annually.
