Reproduction and genetics without doubt encompass a very wide remit and, as is often the case in Study Groups, it is not possible to cover all the aspects relating to the topic that would fulfil everyone's desires or aspirations. These constraints, however, do not prevent an attempt at addressing and discussing the relevant areas of the specialty with acknowledged experts from the UK and abroad.

The progress and increased knowledge base in genetics within the past decade have impacted on this important area with interesting consequences. The ability to identify genetic defects prior to implantation, to diagnose fetal abnormalities and to introduce screening programmes means that genetic testing has a major role in preventive medicine. In parallel with these advances, there are other aspects that cannot be ignored, such as education of the public and the potential ethical dilemmas that may arise by virtue of these new methodologies.

In this book, developed from the 57th RCOG Study Group, many of the above topics are discussed. It is hoped that the reader will find in a single book the diverse areas relating to reproduction and genetics, and it should be of interest to those involved in these specialist areas.

As with all these expert groups, the RCOG thanks all the individuals who have selflessly given their time and expertise to ensure the publication of a unique book covering areas not available elsewhere. My thanks go to the co-editors for their patience and to all the team involved in making this book a reality.