Abstract
Despite an increase in our understanding of the pathophysiology of irritable bowel syndrome (IBS), in the context of abnormal gut–brain axis communication, and advances in both pharmacological and non-pharmacological treatment of the disorder, there remain areas in which there are misconceptions and controversies in the clinical management of IBS. This Perspective aims to highlight some of the most common misconceptions and controversies in IBS management, including those that the scientific literature has resolved, but for which further education of clinicians dealing with patients with IBS might be required to implement the findings from medical research. Areas of remaining contention are also discussed, as are suggestions as to how these issues could be addressed, both by advances in clinical practice and by further research.
This is a preview of subscription content, access via your institution
Access options
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$32.99 / 30 days
cancel any time
Subscribe to this journal
Receive 12 print issues and online access
$189.00 per year
only $15.75 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to the full article PDF.
USD 39.95
Prices may be subject to local taxes which are calculated during checkout

Similar content being viewed by others
References
Ford, A. C., Sperber, A. D., Corsetti, M. & Camilleri, M. Irritable bowel syndrome. Lancet 396, 1675–1688 (2020).
Sperber, A. D. et al. Worldwide prevalence and burden of functional gastrointestinal disorders, results of Rome Foundation global study. Gastroenterology 160, 99–114 (2021).
Oka, P. et al. Global prevalence of irritable bowel syndrome according to Rome III or IV criteria: a systematic review and meta-analysis. Lancet Gastroenterol. Hepatol. 5, 908–917 (2020).
Ford, A. C., Forman, D., Bailey, A. G., Axon, A. T. R. & Moayyedi, P. Irritable bowel syndrome: a 10-year natural history of symptoms, and factors that influence consultation behavior. Am. J. Gastroenterol. 103, 1229–1239 (2008).
Drossman, D. A. & Hasler, W. L. Rome IV–functional GI disorders: disorders of gut-brain interaction. Gastroenterology 150, 1257–1261 (2016).
Holtmann, G. J., Ford, A. C. & Talley, N. J. Pathophysiology of irritable bowel syndrome. Lancet Gastroenterol. Hepatol. 1, 133–146 (2016).
Black, C. J., Drossman, D. A., Talley, N. J., Ruddy, J. & Ford, A. C. Functional gastrointestinal disorders: advances in understanding and management. Lancet 396, 1664–1674 (2020).
Black, C. J. et al. Top 10 research priorities for irritable bowel syndrome: results of a James Lind Alliance priority setting partnership. Lancet Gastroenterol. Hepatol. 8, 499–501 (2023).
Vasant, D. H. et al. British Society of Gastroenterology guidelines on the management of irritable bowel syndrome. Gut 70, 1214–1240 (2021).
Lacy, B. E. et al. ACG clinical guideline: management of irritable bowel syndrome. Am. J. Gastroenterol. 116, 17–44 (2021).
Hookway, C., Buckner, S., Crosland, P. & Longson, D. Irritable bowel syndrome in adults in primary care: summary of updated NICE guidance. BMJ 350, h701 (2015).
Drossman, D. A., Thompson, W. G. & Talley, N. J. Identification of sub-groups of functional gastrointestinal disorders. Gastroenterol. Int. 3, 159–172 (1990).
Tibble, J. A., Sigthorsson, G., Foster, R., Forgacs, I. & Bjarnason, I. Use of surrogate markers of inflammation and Rome criteria to distinguish organic from nonorganic intestinal disease. Gastroenterology 123, 450–460 (2002).
Ford, A. C. et al. Validation of the Rome III criteria for the diagnosis of irritable bowel syndrome in secondary care. Gastroenterology 145, 1262–1270 (2013).
Black, C. J., Craig, O., Gracie, D. J. & Ford, A. C. Comparison of the Rome IV criteria with the Rome III criteria for the diagnosis of irritable bowel syndrome in secondary care. Gut 70, 1110–1116 (2021).
Poon, D., Law, G. R., Major, G. & Andreyev, H. J. N. A systematic review and meta-analysis on the prevalence of non-malignant, organic gastrointestinal disorders misdiagnosed as irritable bowel syndrome. Sci. Rep. 12, 1949 (2022).
Spiegel, B. M., Farid, M., Esrailian, E., Talley, J. & Chang, L. Is irritable bowel syndrome a diagnosis of exclusion? A survey of primary care providers, gastroenterologists, and IBS experts. Am. J. Gastroenterol. 105, 848–858 (2010).
Chey, W. D. et al. The yield of colonoscopy in patients with non-constipated irritable bowel syndrome: results from a prospective, controlled US trial. Am. J. Gastroenterol. 105, 859–865 (2010).
Begtrup, L. M. et al. A positive diagnostic strategy is noninferior to a strategy of exclusion for patients with irritable bowel syndrome. Clin. Gastroenterol. Hepatol. 11, 956–962 (2013).
Engsbro, A. L. et al. A positive diagnostic strategy is safe and saves endoscopies in patients with irritable bowel syndrome: a five-year follow-up of a randomized controlled trial. Neurogastroenterol. Motil. 33, e14004 (2021).
Khasawneh, M., Craig, O. F., Gracie, D. J., Black, C. J. & Ford, A. C. A diagnosis of irritable bowel syndrome using Rome IV criteria and limited investigations is durable in secondary care. Clin. Gastroenterol. Hepatol. 21, 3397–3404.e1 (2023).
Camilleri, M. & Katzka, D. A. Enhancing high value care in gastroenterology practice. Clin. Gastroenterol. Hepatol. 14, 1376–1384 (2016).
Fuchs, C. D. & Trauner, M. Role of bile acids and their receptors in gastrointestinal and hepatic pathophysiology. Nat. Rev. Gastroenterol. Hepatol. 19, 432–450 (2022).
Min, Y. W., Rezaie, A. & Pimentel, M. Bile acid and gut microbiota in irritable bowel syndrome. J. Neurogastroenterol. Motil. 28, 549–561 (2022).
Appleby, R. N. & Walters, J. R. The role of bile acids in functional GI disorders. Neurogastroenterol. Motil. 26, 1057–1069 (2014).
Slattery, S. A., Niaz, O., Aziz, Q., Ford, A. C. & Farmer, A. D. Systematic review with meta-analysis: the prevalence of bile acid malabsorption in the irritable bowel syndrome with diarrhoea. Aliment. Pharmacol. Ther. 42, 3–11 (2015).
Valentin, N. et al. Biomarkers for bile acid diarrhoea in functional bowel disorder with diarrhoea: a systematic review and meta-analysis. Gut 65, 1951–1959 (2016).
Camilleri, M. et al. Effect of increased bile acid synthesis or fecal excretion in irritable bowel syndrome-diarrhea. Am. J. Gastroenterol. 109, 1621–1630 (2014).
BouSaba, J. et al. Impact of bile acid diarrhea in patients with diarrhea-predominant irritable bowel syndrome on symptoms and quality of life. Clin. Gastroenterol. Hepatol. 20, 2083–2090.e1 (2022).
Khalid, U., Lalji, A., Stafferton, R. & Andreyev, J. Bile acid malabsorption: a forgotten diagnosis? Clin. Med. 10, 124–126 (2010).
Vijayvargiya, P. et al. Analysis of fecal primary bile acids detects increased stool weight and colonic transit in patients with chronic functional diarrhea. Clin. Gastroenterol. Hepatol. 17, 922–929.e2 (2019).
Borup, C. et al. Prospective comparison of diagnostic tests for bile acid diarrhoea. Aliment. Pharmacol. Ther. 59, 39–50 (2024).
Camilleri, M. Editorial: bile acid diarrhoea – simplified clinico-biochemical diagnosis. Aliment. Pharmacol. Ther. 59, 126–127 (2024).
Borup, C. et al. Efficacy and safety of colesevelam for the treatment of bile acid diarrhoea: a double-blind, randomised, placebo-controlled, phase 4 clinical trial. Lancet Gastroenterol. Hepatol. 8, 321–331 (2023).
Ellegaard, A. M. et al. Liraglutide and colesevelam change serum and fecal bile acid levels in a randomized trial with patients with bile acid diarrhea. Clin. Transl. Gastroenterol. 15, e00772 (2024).
Kårhus, M. L. et al. Safety and efficacy of liraglutide versus colesevelam for the treatment of bile acid diarrhoea: a randomised, double-blind, active-comparator, non-inferiority clinical trial. Lancet Gastroenterol. Hepatol. 7, 922–931 (2022).
Tabaqchali, S., Okubadejo, O. A., Neale, G. & Booth, C. C. Influence of abnormal bacterial flora on small intestinal function. Proc. R. Soc. Med. 59, 1244–1246 (1966).
Pimentel, M., Chow, E. J. & Lin, H. C. Eradication of small intestinal bacterial overgrowth reduces symptoms of irritable bowel syndrome. Am. J. Gastroenterol. 95, 3503–3506 (2000).
Pimentel, M. et al. Rifaximin therapy for patients with irritable bowel syndrome without constipation. N. Engl. J. Med. 364, 22–32 (2011).
Lembo, A. et al. Repeat treatment with rifaximin is safe and effective in patients with diarrhea-predominant irritable bowel syndrome. Gastroenterology 151, 1113–1121 (2016).
Rezaie, A., Heimanson, Z., McCallum, R. & Pimentel, M. Lactulose breath testing as a predictor of response to rifaximin in patients with irritable bowel syndrome with diarrhea. Am. J. Gastroenterol. 114, 1886–1893 (2019).
Black, C. J. & Ford, A. C. Use of lactulose breath tests to predict response to rifaximin in irritable bowel syndrome with diarrhea: the positives and negatives. Am. J. Gastroenterol. 115, 955–956 (2020).
Acosta, A. et al. Effects of rifaximin on transit, permeability, fecal microbiome, and organic acid excretion in irritable bowel syndrome. Clin. Transl. Gastroenterol. 7, e173 (2016).
Yu, D., Cheeseman, F. & Vanner, S. Combined oro-caecal scintography and lactulose hydrogen breath testing demonstrate that breath testing detects oro-caecal transit, not small intestinal bacterial overgrowth in patients with IBS. Gut 60, 334–340 (2011).
Ford, A. C., Spiegel, B. M. R., Talley, N. J. & Moayyedi, P. Small intestinal bacterial overgrowth in irritable bowel syndrome: systematic review and meta-analysis. Clin. Gastroenterol. Hepatol. 7, 1279–1286 (2009).
Mion, F., Subtil, F., Machon, C., Roman, S. & Mialon, A. The prevalence of small intestine bacterial overgrowth in irritable bowel syndrome is much higher with lactulose than glucose breath test: results of a retrospective monocentric study. Clin. Res. Hepatol. Gastroenterol. 48, 102482 (2024).
Lin, E. C. & Massey, B. T. Scintigraphy demonstrates high rate of false-positive results from glucose breath tests for small bowel bacterial overgrowth. Clin. Gastroenterol. Hepatol. 14, 203–208 (2016).
Eckburg, P. B. et al. Diversity of the humanintestinal microbial flora. Science 308, 1635–1638 (2005).
Kashyap, P., Moayyedi, P., Quigley, E. M. M., Simren, M. & Vanner, S. Critical appraisal of the SIBO hypothesis and breath testing: a clinical practice update endorsed by the European Society of Neurogastroenterology and Motility (ESNM) and the American Neurogastroenterology and Motility Society (ANMS). Neurogastroenterol. Motil. 36, e14817 (2024).
Pimentel, M. et al. Autoimmunity links vinculin to the pathophysiology of chronic functional bowel changes following Campylobacter jejuni infection in a rat model. Dig. Dis. Sci. 60, 1195–1205 (2015).
Pimentel, M. et al. Development and validation of a biomarker for diarrhea-predominant irritable bowel syndrome in human subjects. PLoS ONE 10, e0126438 (2015).
Morales, W., Rezaie, A., Barlow, G. & Pimentel, M. Second-generation biomarker testing for irritable bowel syndrome using plasma anti-CdtB and anti-vinculin levels. Dig. Dis. Sci. 64, 3115–3121 (2019).
Rezaie, A. et al. Assessment of anti-vinculin and anti-cytolethal distending toxin B antibodies in subtypes of irritable bowel syndrome. Dig. Dis. Sci. 62, 1480–1485 (2017).
Vasapolli, R. et al. Gut microbiota profiles and the role of anti-CdtB and anti-vinculin antibodies in patients with functional gastrointestinal disorders (FGID). Eur. J. Clin. Invest. 51, e13666 (2021).
Talley, N. J. et al. Circulating anti-cytolethal distending toxin B and anti-vinculin antibodies as biomarkers in community and healthcare populations with functional dyspepsia and irritable bowel syndrome. Clin. Transl. Gastroenterol. 10, e00064 (2019).
Barros, L. L. et al. Anti-CdtB and anti-vinculin antibodies to diagnose irritable bowel syndrome in inflammatory bowel disease patients. BMC Gastroenterol. 24, 448 (2024).
Pittayanon, R. et al. Gut microbiota in patients with irritable bowel syndrome: a systematic review. Gastroenterology 157, 97–108 (2019).
Porcari, S. et al. International consensus statement on microbiome testing in clinical practice. Lancet Gastroenterol. Hepatol. 10, 154–167 (2025).
Talley, N. J. What causes functional gastrointestinal disorders? A proposed disease model. Am. J. Gastroenterol. 115, 41–48 (2020).
Bradley, S., Alderson, S., Ford, A. C. & Foy, R. General practitioners’ perceptions of irritable bowel syndrome: a Q-methodological study. Fam. Pract. 35, 74–79 (2018).
Dixon-Woods, M. & Critchley, S. Medical and lay views of irritable bowel syndrome. Fam. Pract. 17, 108–113 (2000).
Henningsen, P., Zimmermann, T. & Sattel, H. Medically unexplained physical symptoms, anxiety and depression: a meta-analytic review. Psychosom. Med. 65, 528–533 (2003).
Koloski, N. A. et al. The brain–gut pathway in functional gastrointestinal disorders is bidirectional: a 12-year prospective population-based study. Gut 61, 1284–1290 (2012).
Hearn, M., Whorwell, P. J. & Vasant, D. H. Stigma and irritable bowel syndrome: a taboo subject? Lancet Gastroenterol. Hepatol. 5, 607–615 (2020).
Mearin, F. et al. Bowel disorders. Gastroenterology 150, 1393–1407 (2016).
Black, C. J. et al. Efficacy of pharmacological therapies in patients with IBS with diarrhoea or mixed stool pattern: systematic review and network meta-analysis. Gut 69, 74–82 (2020).
Black, C. J. et al. Efficacy of secretagogues in patients with irritable bowel syndrome with constipation: systematic review and network meta-analysis. Gastroenterology 155, 1753–1763 (2018).
Barbara, G. et al. Rome Foundation Working Team Report on overlap in disorders of gut–brain interaction. Nat. Rev. Gastroenterol. Hepatol. 22, 228–251 (2025).
Black, C. J. et al. Novel irritable bowel syndrome subgroups are reproducible in the global adult population. Clin. Gastroenterol. Hepatol. https://doi.org/10.1016/j.cgh.2024.05.042 (2024).
Black, C. J., Ng, C. E., Goodoory, V. C. & Ford, A. C. Novel symptom subgroups in individuals with irritable bowel syndrome predict disease impact and burden. Clin. Gastroenterol. Hepatol. 22, 386–396 (2024).
Polster, A. et al. Mixture model analysis identifies irritable bowel syndrome subgroups characterised by specific profiles of gastrointestinal, extraintestinal somatic and psychological symptoms. Aliment. Pharmacol. Ther. 46, 529–539 (2017).
Polster, A. V. et al. Subgroups of IBS patients are characterized by specific, reproducible profiles of GI and non-GI symptoms and report differences in healthcare utilization: a population-based study. Neurogastroenterol. Motil. 31, e13483 (2019).
Byale, A. et al. High-dimensional clustering of 4000 irritable bowel syndrome patients reveals seven distinct disease subsets. Clin. Gastroenterol. Hepatol. 22, 173–184 (2024).
Black, C. J. et al. A novel method to classify and subgroup patients with IBS based on gastrointestinal symptoms and psychological profiles. Am. J. Gastroenterol. 116, 372–381 (2021).
Black, C. J. & Ford, A. C. Personalisation of therapy in irritable bowel syndrome: a hypothesis. Lancet Gastroenterol. Hepatol. 9, 1162–1176 (2024).
Bohn, L., Storsrud, S., Tornblom, H., Bengtsson, U. & Simren, M. Self-reported food-related gastrointestinal symptoms in IBS are common and associated with more severe symptoms and reduced quality of life. Am. J. Gastroenterol. 108, 634–641 (2013).
Ford, A. C., Staudacher, H. M. & Talley, N. J. Postprandial symptoms in disorders of gut–brain interaction and their potential as a treatment target. Gut 73, 1199–1211 (2024).
Quigley, E. M. The gut response to food: a physiological perspective on food-induced gastrointestinal symptoms – it’s not all allergy and intolerance! Curr. Opin. Gastroenterol. 33, 99–101 (2017).
Park, M. I. & Camilleri, M. Is there a role of food allergy in irritable bowel syndrome and functional dyspepsia? A systematic review. Neurogastroenterol. Motil. 18, 595–607 (2006).
Niec, A. M., Frankum, B. & Talley, N. J. Are adverse food reactions linked to irritable bowel syndrome? Am. J. Gastroenterol. 93, 2184–2190 (1998).
Quigley, E. M. M. Can diet change the natural history of gastrointestinal diseases? JGH Open. 8, e13063 (2024).
Hammond, C. & Lieberman, J. A. Unproven diagnostic tests for food allergy. Immunol. Allergy Clin. North. Am. 38, 153–163 (2018).
Ismail, F. W., Abid, S., Awan, S. & Lubna, F. Frequency of food hypersensitivity in patients with functional gastrointestinal disorders. Acta Gastroenterol. Belg. 81, 253–256 (2018).
Zar, S., Benson, M. J. & Kumar, D. Food-specific serum IgG4 and IgE titers to common food antigens in irritable bowel syndrome. Am. J. Gastroenterol. 100, 1550–1557 (2005).
Zar, S., Mincher, L., Benson, M. J. & Kumar, D. Food-specific IgG4 antibody-guided exclusion diet improves symptoms and rectal compliance in irritable bowel syndrome. Scand. J. Gastroenterol. 40, 800–807 (2005).
Ostrowska, L. et al. IgG food antibody guided elimination-rotation diet was more effective than FODMAP diet and control diet in the treatment of women with mixed IBS: results from an open label study. J. Clin. Med. 10, 4317 (2021).
Atkinson, W., Sheldon, T. A., Shaath, N. & Whorwell, P. J. Food elimination based on IgG antibodies in irritable bowel syndrome: a randomised controlled trial. Gut 53, 1459–1464 (2004).
Zuo, X. L. et al. Alterations of food antigen-specific serum immunoglobulins G and E antibodies in patients with irritable bowel syndrome and functional dyspepsia. Clin. Exp. Allergy 37, 823–830 (2007).
Volpi, N. & Maccari, F. Serum IgG responses to food antigens in the Italian population evaluated by highly sensitive and specific ELISA test. J. Immunoass. Immunochem. 30, 51–69 (2009).
Ligaarden, S. C., Lydersen, S. & Farup, P. G. IgG and IgG4 antibodies in subjects with irritable bowel syndrome: a case control study in the general population. BMC Gastroenterol. 12, 166 (2012).
Singh, P. et al. A novel, IBS-specific IgG ELISA-based elimination diet in irritable bowel syndrome: a randomized, sham-controlled trial. Gastroenterology, https://doi.org/10.1053/j.gastro.2025.01.223 (2025).
Carroccio, A. et al. A cytologic assay for diagnosis of food hypersensitivity in patients with irritable bowel syndrome. Clin. Gastroenterol. Hepatol. 8, 254–260 (2010).
Fritscher-Ravens, A. et al. Many patients with irritable bowel syndrome have atypical food allergies not associated with immunoglobulin E. Gastroenterology 157, 109–118.e5 (2019).
Pinto-Sanchez, M. I. et al. Gluten-free diet reduces symptoms, particularly diarrhea, in patients with irritable bowel syndrome and antigliadin IgG. Clin. Gastroenterol. Hepatol. 19, 2343–2352.e8 (2021).
Chang, L., Lembo, A. & Sultan, S. Spotlight: IBS treatment. Gastroenterology 163, 153 (2022).
Shepherd, S. J., Parker, F. C., Muir, J. G. & Gibson, P. R. Dietary triggers of abdominal symptoms in patients with irritable bowel syndrome: randomized placebo-controlled evidence. Clin. Gastroenterol. Hepatol. 6, 765–771 (2008).
Black, C. J., Staudacher, H. M. & Ford, A. C. Efficacy of a low FODMAP diet in irritable bowel syndrome: systematic review and network meta-analysis. Gut 71, 1117–1126 (2022).
Goyal, O. et al. Low fermentable oligosaccharide, disaccharide, monosaccharide, and polyol diet in patients with diarrhea-predominant irritable bowel syndrome: a prospective, randomized trial. J. Gastroenterol. Hepatol. 37, 301–309 (2022).
Patcharatrakul, T., Juntrapirat, A., Lakananurak, N. & Gonlachanvit, S. Effect of structural individual low-FODMAP dietary advice vs. brief advice on a commonly recommended diet on IBS symptoms and intestinal gas production. Nutrients 11, 2856 (2019).
Rej, A. et al. Efficacy and acceptability of dietary therapies in non-constipated irritable bowel syndrome: a randomized trial of traditional dietary advice, the low FODMAP diet, and the gluten-free diet. Clin. Gastroenterol. Hepatol. 20, 2876–2887.e15 (2022).
Staudacher, H. M. et al. Fermentable carbohydrate restriction reduces luminal bifidobacteria and gastrointestinal symptoms in patients with irritable bowel syndrome. J. Nutr. 142, 1510–1518 (2012).
Staudacher, H. M. et al. Diet low in FODMAPs reduces symptoms in patients with irritable bowel syndrome and probiotic restores Bifidobacterium species: a randomized controlled trial. Gastroenterology 153, 936–947 (2017).
Halmos, E. P. et al. Diets that differ in their FODMAP content alter the colonic luminal microenvironment. Gut 64, 93–100 (2015).
Hamer, H. M. et al. Review article: the role of butyrate on colonic function. Aliment. Pharmacol. Ther. 27, 104–119 (2008).
Mari, A. et al. Adherence with a low-FODMAP diet in irritable bowel syndrome: are eating disorders the missing link? Eur. J. Gastroenterol. Hepatol. 31, 178–182 (2019).
Sultan, N. et al. Presence and characteristics of disordered eating and orthorexia in irritable bowel syndrome. Neurogastroenterol. Motil. 36, e14797 (2024).
Murray, H. B., Doerfler, B., Harer, K. N. & Keefer, L. Psychological considerations in the dietary management of patients with DGBI. Am. J. Gastroenterol. 117, 985–994 (2022).
Zielinski, G., Devries, J., Craig, S. A. & Bridges, A. R. Dietary fiber methods in Codex Alimentarius: current status and ongoing discussions. Cereal Foods World 58, 148–152 (2013).
Gill, S. K., Rossi, M., Bajka, B. & Whelan, K. Dietary fibre in gastrointestinal health and disease. Nat. Rev. Gastroenterol. Hepatol. 18, 101–116 (2021).
Francis, C. Y. & Whorwell, P. J. Bran and irritable bowel syndrome: time for reappraisal. Lancet 344, 39–40 (1994).
Bijkerk, C. J. et al. Soluble or insoluble fibre in irritable bowel syndrome in primary care? Randomised placebo controlled trial. BMJ 339, b3154 (2009).
Moayyedi, P. et al. The effect of fiber supplementation on irritable bowel syndrome: a systematic review and meta-analysis. Am. J. Gastroenterol. 109, 1367–1374 (2014).
Lembo, A. et al. AGA Clinical Practice Guideline on the pharmacological management of irritable bowel syndrome with diarrhea. Gastroenterology 163, 137–151 (2022).
Drossman, D. A. et al. Neuromodulators for functional gastrointestinal disorders (disorders of gut–brain interaction): a Rome Foundation Working Team report. Gastroenterology 154, 1140–1171.e1 (2018).
Gorard, D. A., Libby, G. W. & Farthing, M. J. Influence of antidepressants on whole gut orocaecal transit times in health and irritable bowel syndrome. Aliment. Pharmacol. Ther. 8, 159–166 (1994).
Siproudhis, L., Dinasquet, M., Sebille, V., Reymann, J. M. & Bellissant, E. Differential effects of two types of antidepressants, amitriptyline and fluoxetine, on anorectal motility and visceral perception. Aliment. Pharmacol. Ther. 20, 689–695 (2004).
Ford, A. C., Lacy, B. E., Harris, L. A., Quigley, E. M. & Moayyedi, P. Effect of antidepressants and psychological therapies in irritable bowel syndrome: an updated systematic review and meta-analysis. Am. J. Gastroenterol. 114, 21–39 (2019).
Black, C. J. et al. Efficacy of soluble fibre, antispasmodic drugs, and gut–brain neuromodulators in irritable bowel syndrome: a systematic review and network meta-analysis. Lancet Gastroenterol. Hepatol. 5, 117–131 (2020).
Thompson, W. G., Heaton, K. W., Smyth, G. T. & Smyth, C. Irritable bowel syndrome in general practice: prevalence, characteristics, and referral. Gut 46, 78–82 (2000).
Nulsen, B., LeBrett, W., Drossman, D. A. & Chang, L. A survey of gastroenterologists in the United States on the use of central neuromodulators for treating irritable bowel syndrome. Aliment. Pharmacol. Ther. 54, 281–291 (2021).
Ford, A. C. et al. Amitriptyline at low-dose and titrated for irritable bowel syndrome as second-line treatment in primary care (ATLANTIS): a randomised, double-blind, placebo-controlled, phase 3 trial. Lancet 402, 1773–1785 (2023).
Wright-Hughes, A. et al. Predictors of response to low-dose amitriptyline for irritable bowel syndrome and efficacy and tolerability according to subtype: post hoc analyses from the ATLANTIS trial. Gut https://doi.org/10.1136/gutjnl-2024-334490 (2025).
Teasdale, E. J. et al. Low-dose amitriptyline for irritable bowel syndrome (IBS): a qualitative study of patients’ and GPs’ views and experiences. Br. J. Gen. Pract. https://doi.org/10.3399/BJGP.2024.0303 (2025).
Lowen, M. B. et al. Effect of hypnotherapy and educational intervention on brain response to visceral stimulus in the irritable bowel syndrome. Aliment. Pharmacol. Ther. 37, 1184–1197 (2013).
Lindfors, P. et al. Effects on gastrointestinal transit and antroduodenojejunal manometry after gut-directed hypnotherapy in irritable bowel syndrome (IBS). Scand. J. Gastroenterol. 47, 1480–1487 (2012).
Keefer, L. et al. A Rome Working Team Report on brain–gut behavior therapies for disorders of gut–brain interaction. Gastroenterology 162, 300–315 (2022).
Black, C. J. et al. Efficacy of psychological therapies for irritable bowel syndrome: systematic review and network meta-analysis. Gut 69, 1441–1451 (2020).
Goodoory, V. C. et al. Effect of brain–gut behavioral treatments on abdominal pain in irritable bowel syndrome: systematic review and network meta-analysis. Gastroenterology 167, 934–943 (2024).
Berry, S. K. et al. A randomized parallel-group study of digital gut-directed hypnotherapy vs muscle relaxation for irritable bowel syndrome. Clin. Gastroenterol. Hepatol. 21, 3152–3159.e2 (2023).
Anderson, E. J., Peters, S. L., Gibson, P. R. & Halmos, E. P. Comparison of digitally delivered gut-directed hypnotherapy program with an active control for irritable bowel syndrome. Am. J. Gastroenterol. 120, 440–448 (2025).
Chang, L. et al. Incidence of ischemic colitis and serious complications of constipation among patients using alosetron: systematic review of clinical trials and post-marketing surveillance data. Am. J. Gastroenterol. 101, 1069–1079 (2006).
Chang, L., Tong, K. & Ameen, V. Ischemic colitis and complications of constipation associated with the use of alosetron under a risk management plan: clinical characteristics, outcomes, and incidences. Am. J. Gastroenterol. 105, 866–875 (2010).
Nelson, A. D. et al. Systematic review and network meta-analysis: efficacy of licensed drugs for abdominal bloating in irritable bowel syndrome with constipation. Aliment. Pharmacol. Ther. 54, 98–108 (2021).
Goodoory, V. C., Guthrie, E. A., Ng, C. E., Black, C. J. & Ford, A. C. Factors associated with lower disease-specific and generic health-related quality of life in Rome IV irritable bowel syndrome. Aliment. Pharmacol. Ther. 57, 323–334 (2023).
Goodoory, V. C., Ng, C. E., Black, C. J. & Ford, A. C. Impact of Rome IV irritable bowel syndrome on work and activities of daily living. Aliment. Pharmacol. Ther. 56, 844–856 (2022).
Lacy, B. E. et al. IBS patients’ willingness to take risks with medications. Am. J. Gastroenterol. 107, 804–809 (2012).
Goodoory, V. C., Ng, C. E., Black, C. J. & Ford, A. C. Willingness to accept risk with medication in return for cure of symptoms among patients with Rome IV irritable bowel syndrome. Aliment. Pharmacol. Ther. 55, 1311–1319 (2022).
Author information
Authors and Affiliations
Contributions
The authors contributed equally to all aspects of the article.
Corresponding author
Ethics declarations
Competing interests
The authors declare no competing interests.
Peer review
Peer review information
Nature Reviews Gastroenterology & Hepatology thanks Michael Camilleri, Kewin Tien Ho Siah and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Black, C.J., Olano, C., Quigley, E.M.M. et al. Common misconceptions and controversies in the management of irritable bowel syndrome. Nat Rev Gastroenterol Hepatol 22, 517–526 (2025). https://doi.org/10.1038/s41575-025-01065-9
Accepted:
Published:
Version of record:
Issue date:
DOI: https://doi.org/10.1038/s41575-025-01065-9
This article is cited by
-
Fecal microbiota transplantation improves bile acid malabsorption in patients with inflammatory bowel disease: results of microbiota and metabolites from two cohort studies
BMC Medicine (2025)
-
Long-term risk of inflammatory bowel disease in patients with irritable bowel syndrome: the cross-sectional and longitudinal relationship
Journal of Gastroenterology (2025)


