Poultry farming plays a vital role in ensuring global food security, and its success heavily depends on robust veterinary care and preventive medicine. Poultry Medicine is a specialized textbook designed for veterinary students, poultry practitioners, researchers, and professionals engaged in avian health and production. This book offers a detailed and systematic overview of poultry health, integrating the principles of preventive medicine, diagnostics, and clinical management. Beginning with general aspects of prophylaxis and disease control, it delves into a wide spectrum of infectious diseases, including viral, bacterial, mycoplasma, fungal, and parasitic infections, as well as emerging and exotic diseases that challenge modern poultry production systems. The book also covers in-depth diagnostic procedures such as sample collection, processing, and advanced disease identification techniques. A major strength of this book lies in its comprehensive coverage of organ-system-based disorders, enabling accurate clinical examination, diagnosis, and therapeutic strategies. Topics include disorders of the respiratory, nervous, cardiovascular, digestive, urinary, musculoskeletal, reproductive, endocrine, and immune systems. Special attention is given to nutritional deficiencies, metabolic syndromes, toxicological conditions, pain management, and electrolyte/fluid balance, which are essential for field practitioners. Real-world applications, case-based discussions, and field-lab correlations enrich the reader’s clinical acumen and decision-making ability. Whether you're involved in large-scale poultry operations or rural backyard poultry healthcare, this book serves as a practical and academic resource, combining the latest scientific insights with field applicability.