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Genetic discrimination occurs if people are treated unfairly because of differences in their DNA that increase their chances of getting a certain disease. For example, a health insurer might refuse to give coverage to a woman who has a DNA difference that raises her odds of getting breast cancer. Employers also could use DNA information to decide whether to hire or fire workers.

Genetic testing uses laboratory methods to look at your genes, which are the DNA instructions you inherit from your mother and your father. Genetic tests may be used to identify increased risks of health problems, to choose treatments, or to assess responses to treatments.

A fact sheet about genetic testing for inherited cancer risk. Includes who should consider testing, and how to understand test results.

A fact sheet about the BRCA1 and BRCA2 genes, what to do if a person tests positive for alterations in one of these genes, and consequences of genetic testing.