This guideline covers diagnosing and managing irritable bowel syndrome (IBS) in people aged 18 and over. It details how to accurately diagnose IBS, and aims to improve the quality of life for adults with IBS by promoting effective management using dietary and lifestyle advice, pharmacological therapy and referral for psychological interventions.

In April 2017, recommendation 1.1.1.2 was updated in line with more recent guidance on recognition and referral for suspected cancer. This recommendation is dated [2017]. Recommendation 1.1.1.3 was removed as it was no longer needed after the changes to recommendation 1.1.1.2.

Recommendations

This guideline includes recommendations on:

Who is it for?

  • Healthcare professionals
  • Commissioners and providers
  • People with suspected or confirmed IBS and their families and carers

Is this guideline up to date?

We checked this guideline in February 2017. We found no new evidence that affects the recommendations in this guideline.

Next review: 2019

Guideline development process

How we develop NICE guidelines

This guideline was previously called irritable bowel syndrome in adults: diagnosis and management of irritable bowel syndrome in primary care.

Your responsibility

The recommendations in this guideline represent the view of NICE, arrived at after careful consideration of the evidence available. When exercising their judgement, professionals and practitioners are expected to take this guideline fully into account, alongside the individual needs, preferences and values of their patients or the people using their service. It is not mandatory to apply the recommendations, and the guideline does not override the responsibility to make decisions appropriate to the circumstances of the individual, in consultation with them and their families and carers or guardian.

Local commissioners and providers of healthcare have a responsibility to enable the guideline to be applied when individual professionals and people using services wish to use it. They should do so in the context of local and national priorities for funding and developing services, and in light of their duties to have due regard to the need to eliminate unlawful discrimination, to advance equality of opportunity and to reduce health inequalities. Nothing in this guideline should be interpreted in a way that would be inconsistent with complying with those duties.


Commissioners and providers have a responsibility to promote an environmentally sustainable health and care system and should assess and reduce the environmental impact of implementing NICE recommendations wherever possible.

  • National Institute for Health and Care Excellence (NICE)