Genetic risk

When there is a very strong family history of breast and/or ovarian cancer, there can be an altered gene (gene mutation) that may increase the likelihood of an individual developing breast cancer, although only 5-10% of breast cancers are due to a family history. The links below explain more about this and are taken from the article Moving Genetics into Clinical Cancer Care written by Angela Arnold MS, Cancer Genetics Counsellor, for the 2003 Cancerkin newsletter.