Introducing "Textbook of Blood Physiology" a comprehensive resource designed to cater to the needs of medical, dental, pharmacy, veterinary, ayurvedic, and homeopathic science students in India and abroad. This book combines information from various standard textbooks in medical, dental, pharmaceutical, and veterinary physiology to provide a concise yet comprehensive guide. The authors have simplified relevant facts for clinical guidance, offering both subjective and objective information. With a focus on the latest advancements in the field, this book fills the gap in the availability of quality and quantity information on blood physiology. It serves as a valuable tool for students preparing for competitive examinations and welcomes suggestions for further improvement.