What's the Risk of Getting Breast Cancer if You Don't Have the Gene?
Women who test negative for the gene mutation that causes breast cancer in their family may still have a higher risk of getting the disease.
That's according to a study in a journal of the American Association for Cancer Research.
Previous research said women from families with the BRCA2 mutation who test negative for the mutation have the same risk of getting breast cancer as women in the general population.
But new research suggests they can be four times more likely to develop breast cancer