The exact causes of irritable bowel syndrome, a common disorder that affects the colon, are not known yet. But there are number of factors that can be blamed for increasing your risk of developing irritable bowel syndrome. The walls of the intestines have layers of muscles that contract and relax in a synchronized rhythm when the food moves through intestinal tract to your rectum. These contractions become stronger and may even last longer than usual, when you have irritable bowel syndrome, resulting in problems like gas, bloating and diarrhea. You will experience the opposite of this, in case of weak intestinal contractions that lead to hard and dry stools. Certain abnormalities in your gastrointestinal nervous system can also be blamed for IBS. Stimuli that don't bother other people can trigger symptoms in people with IBS — but not all people with the condition react to the same stimuli. We are listing some of the common triggers here. According to some studies, colon gets hypersensitive, overreacting to mild stimulation. Instead of slow, rhythmic muscles movements, your bowel muscles spasm, causing diarrhea or constipation. Another study shows that some chemicals made by the body such as serotonin and gastrin, that control nerve signals between the brain and digestive tract are responsible for it. While researchers believe that there are certain bacteria in the bowels can lead to the condition. Apart from altered brain and bacterial infection, stress and allergy can also result in IBS. A must watch video featuring Dr. Lalit Kumar Kurry to understand what causes of irritable bowel syndrome.
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