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A member asked:
Does breast cancer run in families?
7 doctors weighed in across 3 answers
Yes.: It is estimated that10-15% of all breast cancer cases in the US are hereditary. A simple blood test exists to see if someone has a genetic mutation responsible for many of these hereditary breast cancers. If someone has this mutation, they have as high as a 65% chance of getting breast ca in their lifetime. Their children have a 50:50 chance of inheriting this mutation.
Answered 11/30/2014
6.3k views
It does in about 15%: Hereditary breast cancer occurs approximately in about 15% of cases. Majority of breast cancer occurs sporadically.
Answered 10/4/2016
5.7k views
Yes: Having a family history does increase your risk. Although the vast majority of women with breast cancer do not have a family history.
Answered 9/28/2016
5.2k views
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