In the last decade, physicians have witnessed a publication will serve as a stimulus to surgeons growing awareness of and concern with diseases of concerned with male reproductive disorders to in- the male reproductive tract. Stimulated by this tensify their personal research attempts to develop interest, a refinement and re-evaluation of existing better therapy for diseases referable to the male reproductive system. It is finally hoped that this surgical techniques for treatment of male repro- ductive disorders has been concurrently appreci- publication will stimulate critical analysis of what ated. Rapid progress in this area has resulted we feel are currently accepted surgical modes of primarily from a cooperative effort from those therapy and to better promote a general inter- specialists in the areas of microsurgery, medical change of clinical information referable to these and surgical oncology, endocrinology and neuro- disorders. physiology, pathology, immunology, genetics and Those who have provided the text and illustra- biochemistry. tions for this volume have contributed a significant As the surgical treatment of diseases and ab- amount of work, and we hope that they feel their normalities of the male reproductive system has material has been well used. The editors also wish to expanded, so have the articles describing these often thank Mr.