ARE YOU A 10?
For women who have a mother, sister, or daughter with breast cancer:
Breast imaging screening should begin five years before the age the relative developed the disease, or at age 40, whichever is the lower number. For example, if your mother was diagnosed when she was 35, you should begin screening when you are 30.
For women whose relatives were diagnosed at early ages, and for women with a BRCA1 or BRCA2 mutation:
Screening is recommended to begin 10 years before the youngest relative was diagnosed. So if your mother and her sister were diagnosed at 35 and 32, you should begin screening at 22.