You sat in that office waiting for the results. You braced yourself. Part of you was almost hoping they’d find something — not because you wanted bad news, but because at least bad news would be an explanation. At least it would mean someone could point at something on a screen and say: there. That’s why.
Instead you got normal. Clear. Nothing remarkable found.
And then came the words that somehow made it worse: “It’s probably just IBS.”
Just IBS. As if the pain isn’t real. As if the urgency isn’t real. As if the way this condition has rearranged your entire life — your plans, your travel, your eating, your relationships — is somehow just something.
If you have lived this experience, I want to start by saying this clearly: your results being normal does not mean your suffering is not real. It means the test was looking at the wrong thing.
Let me explain what I mean.
What a Colonoscopy Actually Looks At
A colonoscopy is a remarkable tool. It gives your gastroenterologist a direct visual view of the lining of your large intestine. It can identify polyps, inflammation, ulcerations, tumors, and structural abnormalities. For ruling out conditions like colon cancer, Crohn’s disease, and ulcerative colitis, it is genuinely invaluable.
But here is what it cannot see: how your nervous system is processing what happens inside your colon.
IBS is classified by researchers as a disorder of gut-brain interaction (Mearin et al., 2016). That means the problem is not in the structure of your gut — the lining, the tissue, the anatomy. The problem is in the communication between your gut and your brain. And that communication happens through nerves, neurotransmitters, and a complex signaling system that a camera traveling through your colon is simply not designed to measure.
Your colonoscopy came back normal because your colon looks normal. That’s actually good news — it means something serious has been ruled out. But it was never going to explain the pain, the urgency, or the way your gut seems to have a mind of its own. That explanation requires a different framework entirely.
The Thing Nobody Explained to You: Visceral Hypersensitivity
There is a phenomenon that affects many people with IBS called visceral hypersensitivity. It means, essentially, that your gut’s pain and sensation threshold is set too low.
In a person without IBS, the ordinary movements of digestion — gas passing through the intestines, the natural contractions of the colon — produce a mild awareness at most. Maybe a slight gurgle. Maybe nothing at all.
In a person with visceral hypersensitivity, those same sensations register as pain, pressure, or urgency. Not because something is wrong with the gut itself, but because the nervous system is amplifying the signals coming from it. The volume is turned up too high. Normal becomes unbearable (Farzaei et al., 2016).
This is not imaginary. It is not psychosomatic in the dismissive sense that word is often used. It is a measurable neurological pattern. Researchers using brain imaging have shown that people with IBS have genuinely different brain activation patterns in response to gut sensations compared to people without IBS — even when those sensations are objectively identical (Tillisch et al., 2017).
You are not making it up. You are not weak. Your nervous system has simply learned, over time, to treat your gut like a threat zone.
Why Doctors Say “Just IBS” (And Why It Feels So Dismissive)
Most gastroenterologists are extraordinarily skilled at what they do, which is diagnosing and treating structural and inflammatory conditions of the digestive tract. IBS, however, lives at the intersection of gastroenterology and neuroscience and psychology — a space that medical training has historically left largely unaddressed.
When a gastroenterologist says “it’s IBS” after ruling out everything else, they are often doing exactly what their training prepared them to do: identifying what it is not. The problem is that “what to do about the nervous system piece” is frequently not part of the conversation that follows — not because they don’t care, but because it sits outside their clinical lane.
This is not your fault. And it is not your gastroenterologist’s fault either, exactly. It is a gap in how IBS care is structured, and it is slowly changing as the research on gut-brain approaches becomes harder to ignore.
What it means for you, right now, is that normal test results plus an IBS diagnosis is not the end of the road. It is actually a redirection toward a different kind of help.
What “Normal” Actually Opens the Door To
When the structural causes are ruled out, something becomes possible that wasn’t before: you can focus your energy on the thing that is actually driving your symptoms.
The evidence for brain-gut behavioral approaches to IBS is substantial and growing. Gut-directed CBT has been shown in large clinical trials to produce significant, lasting symptom improvement for the majority of people who complete it (Lackner et al., 2018). Gut-directed hypnotherapy has been studied since the 1980s and consistently shows that it calms the very hypersensitivity pathways that are generating your pain (Adler et al., 2025). Mindfulness-Based Stress Reduction has been shown to reduce pain and improve quality of life across multiple independent trials (Altobelli et al., 2022).
These are not fringe approaches. They are not “alternative medicine” in the dismissive sense. They are evidence-based interventions that work on the specific mechanism responsible for your symptoms: a nervous system that has learned to be too vigilant about what is happening in your gut.
Normal test results, in this context, are not a door closing. They are a door opening — to the kind of care that actually addresses what is going on.
You Deserve More Than “Just” Anything
IBS is not a minor inconvenience. For many people, it is a condition that shapes every single day. What they eat, where they go, what they plan, what they cancel, how they feel about themselves and their bodies.
You deserve a clear explanation of what is happening in your nervous system. You deserve to have someone take your symptoms seriously and work with you on the actual mechanism — not just the symptom management. And you deserve to know that there is a path forward that does not require your colonoscopy to find something first.
Your results being normal was never the problem. It was just the beginning of a more useful conversation.
About the author
Susan Liddy, MAMFT is a GI Psychotherapist and doctoral candidate in Integrative Health, specializing in nervous system-informed care for IBS and disorders of gut-brain interaction. Georgia residents are welcome to schedule a free consultation at www.susanliddy.com.
This article is for educational purposes and does not constitute medical or psychological advice. Please consult your healthcare providers for individual guidance.
References
Adler, E. C., Levine, E. H., Ibarra, A. N., Boparai, E. S., Hung, Y.-Y., McCrary, Q. D., & Lee, J. K. (2025). Gut-directed hypnotherapy for irritable bowel syndrome: A systematic review and meta-analysis. Neurogastroenterology & Motility, 37(4), e70037. https://doi.org/10.1111/nmo.70037
Altobelli, E., Angeletti, P. M., Profeta, V. F., & Petrocelli, R. (2022). Meditation and irritable bowel syndrome: A systematic review and meta-analysis. Journal of Clinical Medicine, 11(21), 6516. https://doi.org/10.3390/jcm11216516
Farzaei, M. H., Bahramsoltani, R., Abdollahi, M., & Rahimi, R. (2016). The role of visceral hypersensitivity in irritable bowel syndrome: Pharmacological targets and novel treatments. Journal of Neurogastroenterology and Motility, 22(4), 558–574. https://doi.org/10.5056/jnm16001
Lackner, J. M., Jaccard, J., Keefer, L., Brenner, D. M., Firth, R. S., Gudleski, G. D., Hamilton, F. A., Katz, L. A., Krasner, S. S., Ma, C.-X., Radziwon, C. D., & Sitrin, M. D. (2018). Improvement in gastrointestinal symptoms after cognitive behavior therapy for refractory irritable bowel syndrome. Gastroenterology, 155(1), 47–57. https://doi.org/10.1053/j.gastro.2018.03.063
Mearin, F., Lacy, B. E., Chang, L., Chey, W. D., Lembo, A. J., Simren, M., & Spiller, R. (2016). Bowel disorders. Gastroenterology, 150(6), 1393–1407. https://doi.org/10.1053/j.gastro.2016.02.031
Tillisch, K., Mayer, E. A., Gupta, A., Gill, Z., Brazeilles, R., Le Nevé, B., van Hylckama Vlieg, J. E. T., Guyonnet, D., Derrien, M., & Labus, J. S. (2017). Brain structure and response to emotional stimuli as related to gut microbial profiles in healthy women. Psychosomatic Medicine, 79(8), 905–913. https://doi.org/10.1097/PSY.0000000000000493
