Irritable Bowel Syndrome (IBS) Clinical Trials Irritable bowel syndrome (IBS) is a group of symptoms—including pain or discomfort in your abdomen and changes in your bowel movement patterns—that occur together. Doctors often classify Irritable Bowel Syndrome into one of four types based on your usual stool consistency that can range from constipation to diarrhea… Continue reading Irritable Bowel Syndrome