An Overview of Irritable Bowel Disease Crohn’s disease and colitis are chronic inflammatory conditions of the gastrointestinal tract. These diseases can be lumped into the category of irritable bowel disease (IBD). It is estimated that 1.6 million Americans struggle with IBD. Symptoms related to inflammation in the GI tract include abdominal cramps, pain, constipation, diarrhea, urgent need to move bowels, weight loss, fatigue, night sweats. People who experience such symptom