Excessive Gas
As said earlier, those patients who experience IBS might also have increased production of gas in the belly. However, the exact cause is still unknown, although there are a couple of theories. Some scientists believe that that IBS would cause an issue with bacteria in your gut, thus creating some toxins that trigger excessive gas. Another possible cause is that the guts in those people with this health issue are less able to transport and tolerate gas. As a result, it leads to an excessive amount of gas compared to other people. Further research is still necessary to confirm the underlying cause of this symptom. [10]










