Spermatozoa is the basic human male germ cell. This gametocyte plays an important role in fertilization. In the past five years, new improvements in diagnosis have allowed us to assess male fertility potential with a new perspective studying with demonstrated role in sperm physiology. Furthermore, it is demonstrated that infertile men have high levels of sperm DNA damages and a small percentage of spermatozoa from fertile men also possess detectable levels of DNA damage. This book examines several of the factors that may be involved in sperm chromatin and DNA anomalies, including intra and...