This book contains four parts with 16 chapters. Firstly, an optimal stimulation scheme for ovaries, particularly natural and minimal stimulation of ovaries, has been discussed in the first part. Then, one paper analyzed that how many oocytes per retrieval will be the best for human IVF practice. If one stimulation scheme produces too many eggs, it often results in hyperstimulation syndrome. Thus, a chapter reviewed hyperstimulation syndrome diagnosis, prevention and treatment. In the second part, some advanced technologies in insemination have been listed. After introduction of normal sperm physiology, sperm meiotic chromosome abnormalities and DNA fragmentation infertile patients are analyzed. .
