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What privacy and discrimination concerns can result from presymptomatic genetic testing?

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BRCA2 tumor suppressor gene on chromosome 13 — human genetic disease Photomicrograph of the *BRCA2* tumor suppressor gene on chromosome 13 of the human genome. Inactivation of this growth-regulating gene is associated with a higher risk of developing breast cancer.

Presymptomatic genetic testing, while valuable for identifying risks of late-onset conditions, introduces significant ethical challenges regarding privacy and discrimination.

Privacy and Ethical Complexity

A primary concern is the protection of genetic privacy. Because genetic information is inherently familial, a diagnosis for one individual often has implications for other family members. Balancing the right to individual privacy against the ethical obligation to inform relatives who may be at risk for a hereditary condition creates complex dilemmas for patients and clinicians.1

Risks of Discrimination

The potential for genetic discrimination remains a critical issue. When individuals are identified as having a predisposition to a disease—particularly those for which no effective treatment exists—they may face prejudice or unfair treatment in areas such as employment or insurance. Furthermore, societal emphasis on screening can inadvertently promote the view that disability is a burden to be eradicated, which can marginalize those already living with genetic conditions.2

Ethically, it is imperative that individuals are protected from such discrimination and that their autonomy in deciding whether to undergo testing is fully respected, especially given the potential for psychological trauma upon receiving a diagnosis.34