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Digestive Condition

Irritable bowel syndrome (IBS)

Irritable bowel syndrome (IBS) is the most common functional gastrointestinal disorder in the UK, affecting around 1 in 5 people at some point. It causes a range of digestive symptoms — including abdominal pain, bloating, diarrhoea and constipation — without any identifiable structural cause. IBS is strongly influenced by the gut-brain connection, making psychological therapies as important as dietary and medical approaches.

See therapies that may help

What is Irritable bowel syndrome (IBS)?

IBS is a functional disorder — the bowel looks structurally normal but does not function normally. Current understanding positions IBS as a disorder of gut-brain interaction: the communication between the enteric nervous system (the "gut brain") and the central nervous system is dysregulated, leading to altered gut motility, heightened visceral sensitivity, and altered gut microbiome.

IBS affects people of all ages but is more common in women and typically begins before the age of 50. It is frequently triggered by gastrointestinal illness (post-infectious IBS), stress, or dietary factors, and is commonly associated with anxiety and depression — both as comorbidities and as maintaining factors.

IBS is diagnosed based on the Rome IV criteria and is a diagnosis of exclusion — other conditions such as inflammatory bowel disease, coeliac disease and colorectal cancer should be ruled out, particularly in older people or those with alarm symptoms.

Signs and symptoms

IBS symptoms vary significantly between people and over time. Common symptoms include:

  • Abdominal pain or cramping — typically relieved by defecation
  • Bloating and abdominal distension
  • Diarrhoea, constipation, or an alternating pattern of both
  • Urgency — needing to rush to the toilet
  • Feeling of incomplete emptying after defecation
  • Mucus in the stool
  • Symptoms that worsen with stress or around mealtimes

See your GP if bowel habits have changed significantly, if you notice blood in your stool, if you have unexplained weight loss or anaemia, if you are over 60 with new symptoms, or if symptoms are severe or rapidly worsening.

How therapy can help

IBS management typically involves a combination of dietary adjustment, lifestyle changes and, crucially, psychological support:

  • Gut-directed hypnotherapy — one of the best-evidenced psychological treatments for IBS, with studies showing around 70% of patients experience significant improvement. NICE recommends it for IBS that has not responded to dietary and pharmacological management
  • CBT for IBS — addresses the psychological maintaining factors including health anxiety, avoidance behaviour, catastrophising about symptoms and the stress-IBS relationship
  • Mindfulness-based stress reduction (MBSR) — good evidence for reducing IBS symptom severity through reducing stress-driven gut reactivity
  • Dietary approaches — the low FODMAP diet, supervised by a dietitian, reduces symptoms in around 70% of IBS patients. This should be implemented with professional guidance to avoid unnecessary dietary restriction
  • Acupuncture — some evidence for symptom relief in IBS, particularly for abdominal pain

Seeking help

If you have persistent gut symptoms, a GP assessment is the appropriate starting point to rule out other conditions. Once a diagnosis of IBS is confirmed, NICE guidelines recommend dietary advice, followed by psychological therapy if dietary and pharmacological approaches have not provided adequate relief.

The IBS Network offers excellent resources and support. Dietitians specialising in IBS and the low FODMAP diet can be found through the British Dietetic Association directory.

Therapies that may help with Irritable bowel syndrome (IBS)

Showing 11 therapies linked to Irritable bowel syndrome (IBS).

Therapy Evidence Notes
Cognitive Behavioural Therapist
strong

CBT helps you recognise how stress and unhelpful thinking patterns can worsen IBS symptoms and gut-related anxiety.

Dietitian
strong

A dietitian can guide you through structured approaches such as the low-FODMAP diet to identify foods that trigger your IBS.

Hypnotherapist
strong

Gut-directed hypnotherapy uses focused relaxation to calm the gut-brain axis, easing IBS pain, bloating and bowel disturbance.

Mindfulness Practitioner
strong

Mindfulness training helps you respond more calmly to gut sensations and stress, which can reduce IBS symptom severity.

Psychotherapist
strong

Talking therapy can address the anxiety, stress and past experiences that often interact with and intensify IBS symptoms.

Acupuncturist
moderate

Acupuncture is sometimes used to ease IBS pain and bloating; evidence is limited and it works best alongside standard care.

Biofeedback Practitioner
moderate

Biofeedback can help retrain pelvic floor and bowel function, which may aid IBS where constipation or coordination problems feature.

Massage Therapist
moderate

Abdominal massage may offer gentle, supportive relief from IBS bloating and discomfort; evidence is limited and it aids rather than replaces care.

Nutritional Therapist
moderate

Nutritional therapy may support symptom management by reviewing your diet, though evidence is limited and it complements medical advice.

Physiotherapist
moderate

Physiotherapy can address pelvic floor dysfunction contributing to IBS-related constipation or straining, supporting alongside other treatments.

Yoga Therapist
moderate

Yoga combines gentle movement and breathing to ease stress; it may support IBS relief but is best used alongside appropriate care.

Frequently asked questions

Is IBS a serious condition?

IBS is not associated with serious complications such as cancer or inflammatory bowel disease, and does not cause structural damage to the bowel. However, it can significantly impair quality of life, restrict activities and cause considerable distress. Taking it seriously and seeking appropriate management is entirely justified.

What triggers IBS?

Common triggers include stress and anxiety, specific foods (particularly high-FODMAP foods such as wheat, dairy, onions and garlic for some people), irregular eating, caffeine, alcohol, and menstruation. Triggers vary significantly between individuals — a food and symptom diary can help identify personal patterns.

Can anxiety cause IBS?

There is a bidirectional relationship between anxiety and IBS. Anxiety activates the gut-brain axis in ways that alter gut motility and increase visceral sensitivity, worsening IBS symptoms. Conversely, living with IBS symptoms causes anxiety. Treating both simultaneously — with gut-directed hypnotherapy or CBT — produces better outcomes than treating either alone.

What is gut-directed hypnotherapy and how does it work?

Gut-directed hypnotherapy is a specific form of hypnotherapy developed for IBS that uses suggestions focused on calming and normalising gut function during a deeply relaxed state. It works through the gut-brain axis, reducing visceral hypersensitivity and normalising gut motility. It has one of the strongest evidence bases of any IBS treatment.

Does the low FODMAP diet cure IBS?

The low FODMAP diet significantly reduces symptoms for around 70% of people with IBS but is not a cure. It identifies foods that trigger symptoms in your specific case, allowing you to make targeted dietary adjustments. It should be implemented in three phases (elimination, reintroduction, personalisation) under dietitian supervision to avoid unnecessary long-term dietary restriction.