Gut-Directed Hypnotherapy

The Manchester trial of 1984

The controlled trial most often cited as the start of this approach was published in The Lancet in 1984 by Whorwell, Prior and Faragher. It randomly allocated 30 people with severe refractory irritable bowel syndrome (IBS) to hypnotherapy or to psychotherapy with a placebo. The authors reported a large improvement in the hypnotherapy group, no relapses during a 3-month follow-up and no substitution of other symptoms. The trial was small and its follow-up short, so it marks the start of a research line and does not settle the question.

Clinicians at the hypnotherapy unit at Wythenshawe Hospital in Manchester described the unit in 2020 as having treated refractory functional gut disorders for over 35 years. Their method is known as the Manchester protocol, and the unit is the setting for several of the studies cited on this page.

Long-term follow-up and a second protocol

In 2003 Gonsalkorale and colleagues reported questionnaires from 204 patients treated in Manchester, followed for up to six years. They reported that 71% responded at first and that 81% of those responders kept their improvement. The study had no control group, and the response status was judged by the patients themselves.

A separate seven-session course, the North Carolina protocol, was described by Palsson in 2006. Its distinctive feature is that the whole course is designed for verbatim delivery. The author reports that it was tested in two published studies and that more than 80% of patients benefited, a figure from the protocol developer and not an independent finding.

Names in use

Research papers use gut-directed hypnotherapy, abbreviated GDH, most often. The Manchester group also uses gut-focused hypnotherapy, and Palsson writes of hypnosis treatment for IBS. The British Society of Gastroenterology describes IBS as a disorder of gut-brain interaction, the framework within which this treatment is placed. The page title follows the term used in most guidelines and reviews.

The two named protocols

The Manchester protocol is a therapist-delivered course adapted to the patient, with a first session devoted to explanation. The North Carolina protocol is a seven-session course written to be delivered word for word. Neither name refers to a different underlying theory, and both are applied to IBS only in the sources reviewed here.

Relation to the Hypnotherapy page

This page belongs to the Machipedia page named Hypnotherapy, which covers the family, and to Clinical Hypnosis. Terms such as hypnotic induction, suggestion and focused attention are described there. Hypnotizability is sometimes measured at baseline; in the Manchester pediatric series the Tellegen absorption scale scores did not differ between responders and non-responders among 32 patients, a small uncontrolled finding.

Course structure in the Manchester unit

The Manchester clinicians describe an introductory session on education about IBS and the treatment, followed by sessions in which the person sits or lies in a reclining chair. Induction is by eye closure, progressive muscular relaxation and standard deepening, and imagery and suggestions are directed at the gut and at gaining a sense of control over it. A hand placed on the abdomen is a common element. Recordings are provided for daily practice, which links the method to Self-Hypnosis and to Guided imagery.

In that unit sessions lasted up to 60 minutes, weekly, over three months. A randomized trial of 448 patients compared 6 with 12 weekly sessions and reported symptom response in 78.8% and 73.9%. The authors judged the shorter course noninferior; the trial had no untreated control group.

North Carolina and home-based versions

The North Carolina protocol uses seven sessions with fixed wording. A 2006 pilot tested a scripted home version over three months in 19 patients and compared them with 57 matched patients from another study who received standard care. Ten of the 19 (53%) responded versus 15 of 57 (26%), and the authors noted the rate was lower than in therapist-delivered treatment. The comparison group was not randomized.

Individual, group and remote delivery

The British Society of Gastroenterology states that hypnotherapy for IBS has traditionally been 6 to 12 weekly face-to-face individual sessions with a trained therapist, that group delivery may have a role in primary and secondary care, and that early video-consultation reports show similar response rates. An Austrian trial tested 10 group sessions over 12 weeks, and Swedish trials used 12 weekly hour-long sessions in private psychology practices and a small county hospital.

Irritable bowel syndrome and related symptoms

Practitioners in the Manchester unit describe the aim as helping the person learn to control gut function and report improvement in non-colonic symptoms such as nausea, headache and lethargy, as well as bowel symptoms. In the sources reviewed, use is directed at IBS, usually after standard treatments have not helped. A 2015 review also covered inflammatory bowel disease, but that material is outside this page and its evidence is not carried over.

What guidelines say

NICE guideline CG61, published in 2008 and last updated in 2017, says referral for psychological interventions (cognitive behavioural therapy, hypnotherapy or psychological therapy) should be considered for people with IBS who do not respond to drug treatment after 12 months and have a continuing symptom profile, described as refractory IBS. The hypnotherapy recommendation is tagged 2008, so it predates the 2015 and 2017 changes.

The 2021 ACG guideline suggests gut-directed psychotherapies to treat global IBS symptoms, a conditional recommendation based on very low quality evidence that names hypnotherapy among them. The 2021 British Society of Gastroenterology guideline states that gut-directed hypnotherapy may be an efficacious treatment for global IBS symptoms, rated as a strong recommendation with low quality evidence.

Randomized trials beyond Manchester

Two Swedish trials randomized 138 people with refractory IBS, one comparing hypnotherapy with supportive therapy and one with a waiting list. Symptoms improved at 3 months in both hypnotherapy groups, and results held at one year, but the authors reported lower effectiveness outside highly specialized centers. A Vienna trial of 100 people reported improvement in 60.8% with group hypnotherapy against 40.9% with supportive talks after treatment, and 54.3% against 25.0% over 15 months.

Systematic reviews

Peters and colleagues found that six of seven randomized IBS studies reported significant symptom reduction, with response rates from 24% to 73%. A 2020 network meta-analysis of 41 trials reported a relative risk of remaining symptomatic of 0.67 (95% CI 0.49 to 0.91) for gut-directed hypnotherapy, similar to face-to-face CBT at 0.62. A 2023 meta-regression found an added effect over attention controls for hypnotherapy that did not survive adjustment for further confounders.

A 2025 review of 12 studies in 1,158 patients found all 12 favored hypnotherapy, nine significantly. Its pooled standardized mean difference was 0.73 with a confidence interval from -0.09 to 1.55 and high heterogeneity, so the pooled estimate did not exclude no effect.

Children and adolescents

A systematic review found three randomized trials in children with functional abdominal pain or IBS, with 22 to 52 children each. All reported greater pain improvement with hypnotherapy, but the review did not pool data and called for higher quality research. An uncontrolled Manchester series of 32 young patients reported an 88% response, which is not comparative evidence.

Mechanism

A randomized study of 90 patients measured gastric emptying, small bowel and colonic transit and manometry before and after treatment and found no significant differences in either group. The authors could not show a motility explanation and called for further work on how the treatment acts.

Trial design and heterogeneity

Participants cannot be unaware they are receiving hypnotherapy, so blinding is limited to outcome assessment, as in the 6 versus 12 session trial. Comparators differ across trials, from supportive therapy to waiting lists. Reviews describe small studies, variable delivery and, in the 2025 review, high heterogeneity, and Peters and colleagues noted difficulty designing well controlled trials.

Access, cost and therapist training

The British Society of Gastroenterology names the cost of delivery, its time intensity and the need for a trained therapist as barriers to wider provision, and notes that provision is restricted to refractory cases. Peters and colleagues identified a paucity of adequately trained hypnotherapists. Manchester clinicians describe the treatment as not widely available and as surrounded by scepticism, and report that funding was granted only when conventional options had been exhausted.

What the sources report about harms

None of the sources opened for this page reported a systematic assessment of harms from gut-directed hypnotherapy. The 1984 trial reported no substitution symptoms, and the abstracts of the other trials and reviews do not discuss adverse events. The full text of the 6 versus 12 session trial, as read for this page, did not report adverse events. Absence of reporting does not show that none occurred.

Suitability and exclusions

The Manchester unit screens referrals by a consultant gastroenterologist to confirm an IBS diagnosis and assess suitability, and its main exclusions are major psychopathology and, in young people, severe learning disability that would prevent engagement. The ACG guideline notes that these psychotherapies are less effective in people with comorbid mental health conditions and that such people should be referred to mental health professionals.

Care boundaries and who delivers it

NICE advises assessing everyone with possible IBS symptoms for red flags, including signs of cancer and raised inflammatory markers, with referral to secondary care for investigation if present. Hypnotherapy for IBS is therefore described as following a diagnosis and not replacing it. This page found no professional register or training standard specific to gut-directed hypnotherapy, and the sources describe delivery by trained therapists in hospital units, psychology practices and, in one Swedish setting, a county hospital.