IBS: Which Healthcare Professional Should You See for Irritable Bowel Syndrome?
GP, gastroenterologist, dietitian… Knowing who to turn to for IBS makes all the difference. A clear guide so you don't struggle alone.
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Irritable bowel syndrome affects 1 in 7 people
Irritable bowel syndrome (IBS) is far more common than most people realise, affecting between 10 and 15% of the global population, with women roughly twice as likely to be affected as men. In the UK, it accounts for a significant proportion of GP appointments related to chronic digestive complaints.
Recurring bloating, abdominal pain, alternating diarrhoea and constipation, discomfort after meals… These symptoms, as debilitating as they are invisible to others, often lead patients to muddle through alone for months or even years. Yet getting the right support starts with knowing which professional to turn to.
Why is IBS so difficult to manage alone?
IBS has no single cause. It is a multifactorial condition involving:
- Intestinal hypersensitivity: the nerves of the gut react disproportionately to normal stimuli
- Dysbiosis: an imbalance in the gut microbiome that promotes inflammation and worsens symptoms
- Gut-brain axis dysfunction: stress, anxiety, and trauma directly amplify the perception of digestive pain
- Motility disorders and poor absorption of certain foods (fructans, polyols, lactose, galactans)
Three subtypes exist: IBS-D (diarrhoea-predominant), IBS-C (constipation-predominant), and IBS-M (mixed). Each requires a distinct therapeutic approach. This is precisely why a multidisciplinary team produces far better outcomes than going it alone.
Your GP: the first port of call
As soon as chronic digestive symptoms appear, see your GP first. They will:
- Make an initial diagnosis based on the Rome IV criteria (recurrent abdominal pain linked to bowel habits, bloating, and altered bowel function lasting more than six months)
- Request a basic work-up: blood tests (haemoglobin, CRP, faecal calprotectin), and sometimes stool parasitology
- Rule out red flags that require prompt further investigation
Warning signs that should prompt urgent assessment include: blood in the stools, unexplained weight loss, fever, severe pain, anaemia, or a family history of digestive cancers.
A gastroenterologist: when the diagnosis becomes complex
If your GP identifies red flags or the clinical picture is atypical, they will refer you to a gastroenterologist. This specialist carries out the additional investigations needed to formally rule out conditions such as inflammatory bowel disease (IBD — including Crohn's disease and ulcerative colitis), coeliac disease, or other organic pathologies. A colonoscopy or endoscopy may be requested depending on the severity of symptoms.
A registered dietitian: the cornerstone of day-to-day management
Once a diagnosis has been confirmed, seeing a dietitian with expertise in digestive disorders is essential. They are the key professional for managing your symptoms in practical, everyday terms.
Their role includes:
- Implementing the low-FODMAP diet, the best-evidenced nutritional strategy for IBS, whose effectiveness on bloating and diarrhoea has been confirmed in numerous clinical studies (2020–2024)
- Identifying your personal triggers through a food and symptom diary kept over two to four weeks
- Tailoring your nutritional intake according to your subtype (IBS-D, IBS-C, IBS-M) and your specific intolerances (lactose, fructans from wheat or onion, polyols from apples and pears…)
- Advising on suitable probiotics and digestive enzymes for your profile (Lactobacillus acidophilus, Bifidobacterium infantis, pancreatic enzymes where maldigestion is present)
A psychologist: don't overlook the gut-brain connection
The gut-brain axis plays a central role in IBS. Randomised studies (2021–2023) have validated the effectiveness of cognitive behavioural therapy (CBT) and IBS-specific gut-directed hypnotherapy in significantly reducing digestive symptoms. If stress, anxiety, or past trauma feature in your clinical picture, psychological support is not a luxury — it is an integral part of treatment.
What about functional medicine?
Some patients benefit from a functional medicine approach for more holistic care that integrates sleep, physical activity, gut microbiome health, digestive enzymes, and stress management. This complementary approach can be particularly relevant in complex or treatment-resistant cases, alongside conventional medical care.
Summary: who to see, and when
| Professional | When to contact them |
|---|---|
| GP | First, as soon as chronic symptoms appear |
| Gastroenterologist | If red flags are present or the case is complex |
| Dietitian | As soon as the diagnosis is confirmed — routinely |
| Psychologist / Psychotherapist | If stress, anxiety, or trauma are worsening symptoms |
| Functional medicine practitioner | As a complement, for a broader holistic approach |
The right move: don't wait
IBS is not something you simply have to live with. With the right support — a GP for diagnosis, a specialist dietitian for nutritional guidance, and psychological support where needed — the majority of patients experience a significant improvement in their quality of life. The first step is to stop facing your symptoms alone and to seek out the right professional.