Neuroendocrinology is a branch of biology that studies the interaction between the nervous system and the endocrine system, such as the regulation of hormonal activity in the body by the brain. Progesterone and estrogen are the reproductive hormones in women while testosterone is present in men. These hormones are produced by primary reproductive glands, which include testes in men and ovaries in women. They are regulated through hormone signals generated by the follicle stimulating hormone, luteinizing hormone and pituitary gland. The neuroendocrine system regulates reproduction, metabolism, eating and drinking behavior, energy utilization, osmolarity and blood pressure. The neuroendocrine system regulates all aspects of reproduction, from bonding to sexual behavior. Spermatogenesis, the ovarian cycle, parturition, lactation, and maternal behavior are all controlled by this system. It also controls the body's reaction to stress and infection. This book explores all the important aspects of clinical reproductive neuroendocrinology in the present day scenario. It is a vital tool for all researching and studying this field. The book will serve as a valuable source of reference for graduate and post graduate students.