This elective is designed for 4th year medical students interested in pursuing Obstetrics and Gynecology. It is particularly relevant for students who may wish to consider subspecialty training in Reproductive Endocrinology and Infertility (REI). This elective will allow the student to focus on REI problems exploring in depth the diagnostic evaluation and treatment approaches to those problems. The course will involve one-on-one patient care with our Reproductive Endocrinologists. In addition, the student will spend a brief time in the andrology, endocrine, and in vitro fertilization laboratories to provide a better understanding of laboratory contribution to diagnosis and treatment. Students will also participate in pelvic ultrasound and surgical care of patients. Didactic training from the Reproductive Endocrinologists will be given. Students will prepare a presentation on a clinical topic or an interesting case and present it at the end of the elective.