A comprehensive survey of the use of ultrasound in management of infertile patients is presented in this publication. Particular atten-tion is given to recently developed techniques such as assessment of endometrial changes, ovarian blood flow measurements, and per-cutaneous oocyte retrieval for in vitro fertilization. The very re-cent technique of transvaginal sonography is presented and richly illus-trated with original results obtained in biopsy-guided oocyte re-trieval, and in the precise delineation of follicle size and number for infertility treatment. Guidance in the interpretation of ultrasonic findings, which include potential limitations and pitfalls, is provided in each chapter. Researchers and practitioners interested in the management of infertile patients will find this volume indispensable.