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IBS and Digestive Disorders

Effective relief for IBS, bloating, constipation, and digestive irregularity.

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Acupuncture for IBS, bloating, colitis, acid reflux, and digestive disorders in Seattle.

IBS Is a Description, Not an Explanation

If you've been diagnosed with IBS, you've been told you have a real condition with no clear cause and no specific treatment beyond symptom management — antispasmodics, fiber supplements, low-FODMAP, antidepressants, and the suggestion that stress is probably making it worse. The diagnosis is essentially "your gut symptoms don't fit a structural disease pattern, so we're calling it functional." That's accurate as far as it goes. It's also the beginning of an investigation, not the end of one.

What patients labeled with IBS actually have varies enormously: SIBO (small intestinal bacterial overgrowth), post-infectious motility changes, food sensitivities, gut dysbiosis, mast cell involvement, bile acid malabsorption, visceral hypersensitivity from chronic stress, parasitic infections, or some combination. Each requires different treatment. The label "IBS" obscures these distinctions; functional medicine workup reveals them.

What's Actually Happening in IBS

The Rome IV criteria define IBS as recurrent abdominal pain with bowel habit changes (diarrhea-predominant, constipation-predominant, or mixed) without identified structural cause. The mechanism involves several layers, often combined:

Gut-brain axis dysregulation. The bidirectional communication between gut and brain via the vagus nerve and circulating signaling molecules. In IBS, this signaling is disrupted — the brain gets distorted information about gut state, and the gut gets disrupted regulatory signals back. Visceral hypersensitivity (heightened pain perception from normal gut sensations) is a key feature.

Altered motility. Either accelerated (diarrhea pattern) or slowed (constipation pattern) gut transit, often driven by autonomic dysregulation, hormonal fluctuations, and microbiome influences.

SIBO. Bacterial overgrowth in the small intestine — bacteria growing where they shouldn't. Produces gas (often within an hour of eating), bloating, abdominal distension, and stool changes. A substantial portion of IBS patients meet SIBO criteria on breath testing. Methane-dominant SIBO (sometimes called IMO) typically presents with constipation; hydrogen-dominant with diarrhea or mixed.

Post-infectious IBS. Following acute gastroenteritis, a subset of patients develop persistent IBS symptoms. This is now recognized as autoimmune in many cases — antibodies against vinculin (a gut nerve protein) are commonly elevated in post-infectious IBS and predict treatment response.

Bile acid malabsorption. Underrecognized cause of diarrhea-predominant IBS. Bile acids that should be reabsorbed in the terminal ileum spill into the colon, causing watery, urgent diarrhea.

Food triggers. FODMAPs (fermentable carbohydrates) feed bacterial overgrowth and produce gas. Specific food sensitivities (often delayed IgG-mediated) drive inflammation. Histamine-rich foods can trigger reactions in patients with histamine handling issues.

Gut dysbiosis. Reduced diversity, depleted beneficial species, and increased pro-inflammatory species drive IBS symptoms and inflammatory signaling.

Mast cell activation. Increasingly recognized in IBS. Mast cell mediator release in the gut produces pain, motility changes, and food-trigger reactivity.

Stress and HPA dysregulation. Real, measurable, mechanistic. Cortisol and stress hormones directly modulate gut motility, permeability, and pain perception. IBS that's clearly stress-reactive isn't "all in your head" — the stress is producing real physiological changes in your gut.

Where TCM Comes In

Chinese medicine has frameworks for the patterns IBS expresses that are clinically useful and direct.

Liver Qi Stagnation invading the Spleen. The classic stress-IBS pattern. Symptoms worsen with emotional pressure, alternating constipation and diarrhea, abdominal pain that improves after passing gas or stool, irritability, sighing. Treatment soothes the liver and supports the spleen.

Spleen Qi Deficiency with Damp. Loose stools, fatigue after meals, bloating, brain fog, worse with cold or raw foods. Treatment tonifies the spleen and clears damp.

Damp-Heat in the Spleen and Stomach. Diarrhea with urgency, burning sensations, foul stools, sometimes mucus. Inflammatory pattern. Treatment clears damp-heat.

Kidney Yang Deficiency. Early-morning diarrhea, cold intolerance, low back weakness, fatigue. The deeply depleted, cold-pattern presentation. Treatment warms kidney yang.

Spleen Yang Deficiency. Loose stools with undigested food, bloating after eating, cold sensations in the abdomen. Treatment warms the spleen.

Stomach Yin Deficiency. Burning epigastric pain, dry mouth, hunger without appetite. Common after chronic GI inflammation. Treatment nourishes stomach yin.

How We Approach IBS

The first step is getting past the label. Workup identifies what's actually driving the symptoms in your specific case.

Functional medicine workup. Comprehensive stool testing (GI-MAP or similar) for microbial composition, pathogens, parasites, fungi, inflammation markers, digestion markers, and gut barrier markers. SIBO breath testing when bloating is prominent. Food sensitivity testing when patterns suggest immune mediation. Anti-vinculin and anti-CdtB antibodies when post-infectious IBS is suspected. Bile acid testing when diarrhea pattern with no clear trigger.

Acupuncture directly modulates gut motility, vagal tone, and visceral hypersensitivity. Multiple meta-analyses have shown acupuncture effective for IBS — often outperforming standard care for pain, bloating, and quality of life. Treatment addresses both the autonomic component and the specific TCM pattern.

Chinese herbal medicine for the specific TCM pattern. Pattern-matched formulas often produce meaningful results — soothing the liver, tonifying the spleen, clearing damp-heat, warming the kidneys. Selection requires expertise.

Targeted treatment. SIBO requires antimicrobial protocols (often herbal: berberine, oregano oil, allicin, neem) followed by motility support. Dysbiosis requires targeted probiotic and prebiotic strategy matched to findings. Parasitic infections require specific anti-parasitic treatment. Bile acid malabsorption may benefit from bile acid sequestrants.

Dietary strategy. Low-FODMAP can be useful short-term but isn't sustainable long-term — extended restriction worsens dysbiosis. We use targeted elimination based on testing, then careful reintroduction. For some patients, specific carbohydrate, autoimmune protocol, or histamine-aware approaches are appropriate.

Mast cell support when MCAS features are present. Histamine reduction, mast cell stabilization (quercetin, vitamin C, sometimes prescription stabilizers), addressing triggers.

Gut-brain regulation. Stress modulation is not optional. Vagal tone training (breath work, cold exposure, humming, gargling), meditation, and addressing the broader nervous system pattern are part of the foundation.

Address root drivers. Hormonal patterns (IBS often flares with cycles), thyroid dysfunction, post-acute infection patterns, food sensitivities — whatever shows up in the workup gets addressed.

When to Consider Us

  • You have an IBS diagnosis and want to identify what's actually driving your symptoms
  • You suspect SIBO and want comprehensive testing and treatment
  • You have post-infectious IBS that started after a GI illness
  • Standard IBS treatments (low-FODMAP, antispasmodics) haven't fully resolved symptoms
  • Your IBS is clearly stress-reactive and you want to address the gut-brain layer
  • You have IBS alongside other systemic symptoms suggesting broader gut involvement
  • You have IBS-D with urgency and watery stools that fit bile acid malabsorption
  • You suspect food sensitivities or want to identify them rigorously
  • You have IBS with mast cell features (flushing, food reactions, multi-system symptoms)

Selected References

  • Lacy, B. E., et al. (2021). ACG clinical guideline: Management of irritable bowel syndrome. Am J Gastroenterol, 116(1), 17–44.
  • Pimentel, M., et al. (2020). ACG clinical guideline: Small intestinal bacterial overgrowth. Am J Gastroenterol, 115(2), 165–178.
  • Pimentel, M., et al. (2015). Development and validation of a biomarker for diarrhea-predominant irritable bowel syndrome in human subjects. PLoS One, 10(5), e0126438.
  • Tap, J., et al. (2017). Identification of an intestinal microbiota signature associated with severity of irritable bowel syndrome. Gastroenterology, 152(1), 111–123.
  • Manheimer, E., et al. (2012). Acupuncture for treatment of irritable bowel syndrome. Cochrane Database Syst Rev, 5, CD005111.
  • Wouters, M. M., et al. (2016). The role of mast cells in functional GI disorders. Gut, 65(1), 155–168.
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