Predictive genetic testing in young people: when is it appropriate?

Predictive genetic testing is currently offered to adults for a range of conditions, even when there is no possibility of prophylaxis or treatment. However, similar testing in children and adolescents is advised against in international guidelines. Despite this, several authors have argued against the existing guidelines. Given the lack of empirical evidence, it is important that clinicians are aware not only of the guidelines, but also of the arguments in favour of such testing.