What causes IBS is unknown. However, several factors are known to contribute to why IBS symptoms might occur in some people and not others:
People with IBS may have a more sensitive gut - this is sometimes called ‘visceral sensitivity’.
Altered gut mobility
The contents of the gut may move unusually quickly or slowly - this is sometimes called ‘altered gut motility’.
People with IBS may have an imbalance of ‘good’ and ‘bad’ bacteria in their gut - this is sometimes called ‘dysbiosis’.
People with IBS may have a slightly inflamed or ‘leaky’ gut that is not readily detected on usual testing.
Sometimes IBS starts after a severe gut infection such as gastroenteritis - often termed 'gastro'.
If you suspect you have IBS or regularly experience unacceptable gut symptoms please see your doctor or healthcare provider.