My great aunt had breast cancer and my grandma or mom don't have it. what are my chances of getting breast cancer?

Average: Average risk of getting breast cancer in women in the us is about 1 in 8 women. Family genetic risks only account for about 15% of the breast cancers that occur. See your doctor for yearly exams and have yearly mammogram after age 40.

not any different : Just like your mother and grandma, you have some risk yet you have high odds of never having a problem. But the only way to help yourself is to have a clinical breast examination by your physiican once yearly and have yearly mammograms starting at the age of 40.. I would also advise you to do monthly breast self exams tio look for any changes in the appearance of your breasts and how they feel.