* Even if you test positive for an abnormal gene, there is no proven way to reduce cancer risk
* There is no guarantee that test results will remain private
* You may face discrimination for health insurance, life insurance, or employment
* Emotional distress. You may find it harder to cope with your cancer risk when you know your test results. The results may also have a significant emotional impact on your family and friends.
* Negative test results may provide a false sense of security because you think you have no chance of getting cancer, which is not true.
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