Research is often conducted without the knowledge or consent of those whose tissues are banked and poses possible harms to social groups if information about a few members is unscientifically applied to all.
Ruth M. Farrell, MD, MA, Holly Pederson, MD, and Shilpa Padia, MD
Though they claim to, direct-to-consumer genetic tests may not correctly identify an individual's ancestral background, and thus may overstate or understate one's risk for heritable disease.
U.S. and international medical organizations recommend against testing children for genetic diseases that occur after adolescence and for which no prevention or treatment is available.