Various aspects related to bariatric surgery have been covered in this book. Bariatric surgery has gained significance in the past few decades because of the predominance of obesity around the world, and due to the growth in the comprehension of the physiological and pathological features of obesity and related metabolic syndromes. This book is a compilation of data worked on by experts from around the globe. The book discusses topics like choice of procedure, preoperative preparation including the psychological aspect, postoperative care and administration of the problem. It even deals with theory and result of metabolic surgery and scar less bariatric surgery. The book will be beneficial for professionals dealing with bariatric patients.