The field of gastroenterology is one of the most important fields in the medicinal science. It deals with the identification, prevention and treatment of disorders and ailments occurring in the digestive system, including alimentary canal. Few of the treatment processes included in this field are endoscopy, liver biopsy, proctology, colonoscopy, etc. This book provides significant information about this discipline to help develop a better understanding of gastroenterology and its sub-fields. Some of the diverse topics covered in the book address the varied branches that fall under this subject. It is a complete source of knowledge on the present status of this important field.