At this time, the sole generally accepted use for DNA diagnosis in the
hemoglobinopathies is for the prenatal detection of disease, which ca
n be identified by these means early in the first trimester of pregnan
cy. By ascertaining genotype rather than phenotype, the confusion that
results from diagnostic errors should be diminished. DNA diagnostics
are the future of all genetic disease detection and this future will s
oon be upon us.