Irritable bowel syndrome (IBS) is a gastrointestinal (GI) disorder characterized by bouts of stomach cramps or discomfort, along with constipation, diarrhea, or both. Other symptoms of IBS include bloating, flatulence, an urge to empty the bowels, a feeling of not emptying the bowels completely, and whitish mucus in the stool. Although the exact cause of IBS is unknown, its symptoms may result from a disturbance in the way the nervous system, gut, and brain interact, leading to changes in usual bowel movement and sensation. In some cases, individuals with bacterial infections in the GI tract may develop IBS. Furthermore, bacterial overgrowth in the small intestine produces extra gas, and may also cause weight loss and diarrhea. Stress is not directly related to IBS; however, it may trigger the symptoms of the condition. The symptoms and severity of IBS vary between individuals, and the symptoms may come and go in intervals, lasting anything from a few days to months. The severity of IBS ranges from mild inconvenience to severe impairment, and the condition may affect an individual’s quality of life. 

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