RT Journal Article SR Electronic T1 Fertility in a male with trisomy 21. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 294 OP 298 DO 10.1136/jmg.26.5.294 VO 26 IS 5 A1 R Sheridan A1 J Llerena, Jr A1 S Matkins A1 P Debenham A1 A Cawood A1 M Bobrow YR 1989 UL http://jmg.bmj.com/content/26/5/294.abstract AB We review the published reports on reproduction in cases of non-mosaic trisomy 21 (Down's syndrome) and present the first fully documented case of a non-mosaic male with Down's syndrome fathering a pregnancy, a fact which has important implications in the light of caring for these people in the community.