Is Irritable Bowel Syndrome real? Diagnosis and treatment options for Irritable Bowel Syndrome (IBS) have traditionally addressed the clinical symptoms of the disease, including constipation, diarrhea, and abdominal pain. However, new understanding of the pathophysiology of IBS promises to yield new diagnostic techniques and therapies to supplement symptom-based approaches. Find out more from SIG, Specialists in Gastroenterology, Board Certified Gastroenterologists located in St. Louis, MO. Lear