The potential of electric and magnetic fields to adversely affect the health of the human population is an issue which continues to receive a great deal of attention in both public and scientific forums. One of the critical issues is the possibility that such fields may adversely affect the reproductive process. The studies are ordered in broad categories based upon both classification of the species studied (i.e. submammalian, mammalian exclusive of man, and human) and the agent used (i.e. extremely low frequency electric, very low frequency electric, and magnetic fields). From our review, we conclude that laboratory experimental and epidemiological results to date have not yielded conclusive data to support the contention that such fields induce adverse reproductive effects under the conditions studied.