Microbiology is an extremely diverse discipline & can be a bewildering field to the neophyte. The traditional books seem to be exhaustive of microbiologic facts. This edition is the carefully nurtured descendant of that book and retains the useful format for the edition of the text, enhanced by full-color illustrations and photographic reproductions. The goal is to provide a comprehensive summary of the specialty of microbiology & gynecology. All chapters were thoroughly revised to provide timely information and references. The illustrations and photographs were updated and made more accessible and informative. The publication of this book marks 4 years of my tenure at the Santosh Deemed to be university. The generosity of spirit and commitment to the cause of women and their health that guides the work of my colleagues at Santosh Deemed to be university has been a pleasure and inspiration for me. The local community outside of the university shares this commitment to improving the health and welfare of women, and I am gratified by their efforts to make a difference in the kind of care that is available to women and their families. I look forward to the specialty's continued positive impact of on the health of women throughout the world. It is my fervent hope that my work will benefit all women and reduce the numbers of those who are afflicted with diseases of the female reproductive tract at reproductive age group. To that end, this book is offered as a resource to assist and encourage all who study the specialty of microbiology & gynecology.