Inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS) are two of the most common gastrointestinal disorders. A group of inflammatory conditions associated with the colon and small intestine is termed as inflammatory bowel disease. The two main types of inflammatory bowel disease include Crohn's disease and ulcerative colitis. A group of symptoms like, abdominal pain and changes in the pattern of bowel movements comes under the broad term, irritable bowel syndrome. There are four main types of IBS, namely, constipation-predominant (IBS-C), diarrhea-predominant (IBS-D), with alternating stool pattern (IBS-A) and pain-predominant. This book unravels the recent studies related to inflammatory bowel disease and irritable bowel syndrome. It consists of contributions made by international experts. Those in search of information to further their knowledge will be greatly assisted by this book.