I have been diagnosed with IBS, but tests found nothing wrong, do I need more tests?

I have been diagnosed with IBS, but tests found nothing wrong, do I need more tests?

Lin Chang (UCLA Division of Digestive Diseases) gives expert video advice on: How is IBS diagnosed?; Can my family doctor diagnose IBS or do I need to see a specialist?; What symptoms lead to a possible diagnosis of IBS? and more...

In general, studies have shown that you don't need to do an aggressive diagnostic workup to rule out other conditions. If the patient meets the Rome Criteria, which are the symptom based diagnostic criteria, and they don't have these other alarm signs, it's very specific for the diagnosis of IBS. The tests that we have now are fairly limited. They are looking for other conditions. We don't have a test that we could use right now to diagnose IBS.