This volume of the Year Book of Infertility aims to provide a comprehensive overview of the latest advancements and research in the field of human reproduction and infertility for the year 1991. It synthesizes key findings and clinical insights from the preceding year's publications, offering a curated selection of significant studies and expert commentary. The book serves as an essential resource for clinicians and researchers seeking to stay abreast of developments in diagnosis, treatment, and understanding of reproductive challenges.

As part of a long-standing annual series, the Year Book of Infertility is recognized as a valuable compilation for medical professionals specializing in reproductive health. Its strength lies in its curated selection of the year's most impactful research, distilled and commented upon by leading experts in the field. The volume is structured to provide a concise yet thorough update, enabling practitioners to integrate new knowledge into their clinical practice and research endeavors.