2. Lower abdominal pain
Perhaps one of the most famous and frequent symptoms of irritable bowel syndrome is pain; this pain has a series of particular characteristics that help set it apart from other painful manifestations of conditions or even normal pain such as menstrual cramping. For example, abdominal pain caused by an irritable bowel syndrome is often relieve right after bowel movements. This suggests that there is a strong correlation between the cause of the pain and the function and content of the large intestines.
Also, other symptoms of irritable bowel syndrome can cause pain in an indirect way. For example, symptoms described below such as bloating and excessive gas, tend to distend the bowels, and this excessive stretching of the tissue of the larger intestine causes pain. There might be other mechanisms involved in the sensation of aching that typically accompanies irritable bowel syndrome, but this is how far our current understanding goes.