This book covers the entire spectrum of gestational trophoblastic disease from the most benign to the most malignant form. It addresses etiopathogenesis, molecular basis of the disease, risk assessment, management and follow-up. Management in the form of surgical, medical and supportive care is discussed in detail to help the practitioner in making treatment decisions. Special and rare varieties of the disease are dealt separately. A separate section in each chapter covers critical conditions arising from the disease. Case based discussions make the chapters more lively and interesting. The recent trials and studies are also covered in the book. Topics such as fertility preservation, gestational trophoblastic diseases registry and development of voluntary organizations for supporting patients are value additions to this book. This book is meant for the general obstetrician and gynecologist and for the gynecologic oncologist as well.