Human genetic and genomic research can yield information that may be of clinical relevance to the individuals who participate as subjects of the research. However, no consensus exists as yet on the responsibilities of researchers to disclose individual research results to participants in human subjects research. “Genetic and genomic research” on humans varies widely, including association studies, examination of allele frequencies, and studies of natural selection, human migration, and genetic variation. For the purposes of this article, it is defined broadly (...) to include analysis of DNA collected from humans that has implications for human health. This paper addresses both research results of individual research participants that may be an intended product of the research, as well as unanticipated, “incidental” findings. (shrink)