This unique book is a comprehensive guide for healthcare providers who treat patients with complex medical conditions but lack the resources to address fertility and sexuality concerns and help patients navigate their fertility decision-making process. It presents up-to-date information concerning fertility preservation and restoration for patients with hereditary cancer syndromes, disorders of sex development, hematologic diseases, genetic disorders of gonadal dysfunction, immunologic diseases, gynecologic diseases, endocrine disorders, and autoimmune and inflammatory diseases. Utilizing a practical, user-friendly format, each chapter discusses the epidemiology, classification, risk factors and/or clinical manifestations, and diagnosis and treatment modalities specific to each condition, as well as the effect of it or its treatment on fertility and unique options that may exist.  Complex medical conditions are inherently difficult to manage, and reproductive interventions are often not part of the conversation. As such, Fertility Preservation and Restoration for Patients with Complex Medical Conditions will be an excellent resource for primary care physicians, obstetrician/gynecologists, endocrinologists, oncologists, and other health professionals working with patients with fertility concerns.  This book, together with Oncofertility: Fertility Preservation for Cancer Survivors; Oncofertility: Ethical, Legal, Social, and Medical Perspectives; Oncofertility Medical Practice: Clinical Issues and Implementation; Oncofertility Communication: Sharing Information and Building Relationships across Disciplines; and Pediatric and Adolescent Oncofertility: Best Practices and Emerging Technologies, provides scientific and medically relevant information on fertility preservation from all vantage points and is an indispensable series for those interested in fertility management in cancer or complex settings.