The document defines irritable bowel syndrome (IBS) as a chronic condition causing abdominal pain, bloating, and changes in bowel movements without any structural damage. IBS affects around 20% of people at some point in their lives, making it a common reason for seeing a gastroenterologist. While symptoms vary per individual and can be exacerbated by stress, IBS does not increase risks of inflammatory bowel diseases or cancer. The document concludes that homeopathy provides an effective treatment option for IBS given its psychological components.