Irritable Bowel Syndrome (IBS) is a common disorder that affects the large intestine. It is unrelated to IBD and is characterised by serious tummy discomfort or pain and difficult bowel habits. There are 4 types of IBS – IBS with constipation (IBS – C). IBD with Diarrhoea (IBS – D), IBS with a combination of constipation and diarrhoea (IBS – M), and IBS – U for patients who don’t fall into the first 3 categories. IBS doesn’t increase your likelihood of colon cancer or other colon conditions, but it can seriously affect your quality of life.