Advances in Study on Intestinal Flora Disorder and Irritable Bowel Syndrome

The pathogenesis of irritable bowel syndrome( IBS) is quite complicated,it may be associated with visceral hypersensitivity, gastrointestinal dysmotility, intestinal flora disorder, small intestinal bacterial overgrowth, intestinal infection, food intolerance, immune system dysfunction, social psychological factors and brain-gut axis abnormality. Studies have shown that intestinal flora disorder may be associated with the episode and maintenance of IBS symptoms. This article reviewed the advances in study on intestinal flora disorder and IBS.