What Is Atopic Dermatitis Eczema Telling You? And What Do Most Doctors Not Tell You About Your Gut and Skin?
- Marcelline Goyen
- Jan 25, 2025
- 6 min read
Updated: Jun 10
By Marcelline Goyen, BSc
Registered Dermal Therapist, Skin-Gut Axis Specialist & Author
Published on: January 25, 2025
Table of content
Introduction: Changing the Perspective on Chronic Skin Conditions
Perhaps you have never analyzed inflammatory skin complaints through a systemic lens before. But what is your eczema actually trying to tell you? And what critical physiological connections are frequently overlooked in standard dermatological consultations?
In this article, we will explore the multi-dimensional development of eczema, its underlying triggers, and the profound, science-backed relationship between our epidermal barrier, the gastrointestinal tract, and the human intestinal microbiome.
Disclaimer: The information in this article is intended for educational and professional informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
Development and Complex Causes of Atopic Eczema
Eczema can develop and persist through many distinct pathways. It does not merely originate from the outside world—such as contact allergies triggered by nickel, latex, or harsh chemical irritants—but can also be driven by internal systemic stressors and genetic predispositions, clinically known as atopic or constitutional eczema.
Many patients navigating severe eczema report that their initial conventional diagnoses labeled their condition as strictly chronic and permanent, offering topical corticosteroids as the sole therapeutic option to suppress localized symptoms. While short-term medical intervention is absolutely vital during acute, painful flare-ups to calm intense inflammation, relying exclusively on symptom suppression often leaves patients wondering if there are broader, long-term strategies available to rehabilitate their skin barrier and lower the systemic itch threshold from within.
Is Suppression the Only Option? Expanding the Therapeutic Toolkit
The clinical answer is clear: conventional medication is a necessary and highly effective tool for acute management, but it should not be the only tool in your long-term plan. Highly successful, sustainable results can be achieved provided that practitioners methodically search for the underlying, contributing causes of the systemic imbalance.
Even when a patient carries a distinct genetic vulnerability—such as filaggrin gene mutations that compromise the stratum corneum—there are numerous clinical parameters we can optimize to improve skin health. By identifying and addressing specific external and internal triggers, we can actively work to restore homeostasis.
Systemic & Environmental Triggers | Internal Functional Disruptions |
Nutrition & Lifestyle Cellular nutrient imbalances, delayed food sensitivities, and inflammatory dietary choices. | Intestinal Permeability Increased mucosal permeability where the gut barrier lets unwanted compounds through. |
Neuro-Endocrine Stress Psychological stress pathways that directly trigger mast cell degranulation and itching. | Deep-Seated Infections Localized overgrowths within the GI tract, such as intestinal parasites or fungal imbalances. |
Environmental Exposure Daily contact with poor air quality, hard water, pesticides, and persistent chemical toxins. | Microbial Dysbiosis A severely disrupted resident microbiota lacking beneficial, anti-inflammatory bacteria. |
Topical Hygiene Overly aggressive skincare routines that strip the acid mantle and elevate skin surface pH. | Digestive Dysfunction Functional errors in stomach acid production, pancreatic enzyme output, or bile flow. |
Furthermore, many clinical presentations of eczema have little or nothing to do with genetics. Instead, they are directly provoked by functional digestive errors, chronic mucosal permeability, deep-seated localized infections, and a severely disrupted resident microbiota.
The Skin-Gut Axis: What Stool Analysis Reveals About Eczema and Atopic Dermatitis
When we focus on treating the actual systemic cause rather than just masking the external symptom, the therapeutic options become incredibly diverse. Throughout my clinical practice as a registered dermal therapist, a definitive common thread emerged: the profound state of the patient's digestion and the intestinal tract. An overwhelming majority of individuals presenting with persistent skin disorders concurrently navigated chronic abdominal complaints and abnormal bowel patterns.
Advanced stool research and microbiome mapping consistently demonstrate that severe skin issues—including atopic dermatitis, rosacea, and acne vulgaris—are closely linked to prominent intestinal dysbiosis. By addressing this microbial imbalance, correcting functional dietary mistakes, managing stress rhythms, and optimizing topical skincare, we regularly witness beautiful, sustainable, and long-lasting epidermal recovery. I describe several of these extensive clinical case studies in my second and third textbooks to help practitioners recognize and map the complex skin-gut connection in real-world practice. Paying attention to your digestion after a toilet visit can give you valuable, actionable insights into your overall well-being.
Clinical Summary for Advanced Dermal Professionals
In short, if you are a dedicated skin professional seeking to understand why your clients continue to struggle with unexplained, chronic skin complaints despite high-end topical treatments, it is time to look deeper.
I invite you to explore the science of the skin-gut axis. Go on a journey of discovery into the intricate world of cutaneous parameters, analyzing how they operate in direct collaboration with our microbiome, the immune system, the mucosal barrier, lifestyle choices, and targeted nutrition.
Frequently Asked Questions (FAQ)
Why do gut issues and abnormal stool patterns correlate so closely with eczema?
The gut houses nearly 70% of the human immune system within the gut-associated lymphoid tissue (GALT). When digestion is impaired, it can lead to intestinal dysbiosis and increased mucosal permeability. This allows inflammatory toxins to leak into the bloodstream and travel directly to the skin via the gut-skin axis, where they destabilize the epidermal barrier and amplify itching.
Can an eczema protocol be successful if a patient has a genetic predisposition?
Yes. Genetics dictate a vulnerability, such as a naturally weaker skin shield, but environmental and internal triggers dictate whether that vulnerability turns into an active, severe flare-up. By optimizing nutrition, reducing neuro-endocrine stress, and balancing the intestinal microbiome, we can calm the underlying systemic inflammation and vastly improve skin resilience.
What can a comprehensive stool analysis reveal about chronic skin inflammation?
An advanced stool test provides a detailed overview of gut health by mapping microbial diversity, identifying the overgrowth of opportunistic pathogens like fungi or parasites, and measuring crucial inflammatory markers. This diagnostic data allows skin professionals to develop targeted, internal therapeutic protocols rather than relying on guesswork.
References & Further Reading
De Pessemier B, Grine L, Debaere M, Maes A, Paetzold B, Callewaert C. Gut-Skin Axis: Current Knowledge of the Interrelationship between Microbial Dysbiosis and Skin Conditions. Microorganisms. 2021 Feb 11;9(2):353. doi: 10.3390/microorganisms9020353. PMID: 33670115; PMCID: PMC7916842. PubMed
Petersen EBM, Skov L, Thyssen JP, Jensen P. Role of the Gut Microbiota in Atopic Dermatitis: A Systematic Review. Acta Derm Venereol. 2019 Jan 1;99(1):5-11. doi: 10.2340/00015555-3008. PMID: 30085318. PubMed2
Bowe, W. P., & Logan, A. C. (2011). Acne vulgaris, probiotics and the gut-brain-skin axis - back to the future? Gut Pathogens, 3(1), 1. [Link via Springer Nature]
Goyen, M. (2019). The skin-gut connection. Opus Nova. Volume I. ISBN 9789463456210.
Goyen, M. (2023). The amazing world of the skin-gut axis, including the role of the microbiome. Volume II.
O'Neill, C. A., Monteleone, G., McLaughlin, J. T., & Streeten, A. (2016). The gut-skin axis in health and disease: A paradigm with therapeutic implications. BioEssays, 38(11), 1167-1176. [Link via Wiley]
Salem, I., Ramser, A., Isham, N., & Ghannoum, M. A. (2018). The Gut Microbiome as a Major Regulator of the Gut-Skin Axis. Frontiers in Microbiology, 9, 1459. [Link via Frontiers]
⚖️ Medical Disclaimer: The information provided on this website, including articles, textbook references, and educational materials, is for informational and educational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or another qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.
Marcelline Goyen, BSc Registered Dermal Therapist & Author (The Netherlands)
Founder of www.skin-gut-axis.com
About Marcelline Goyen, BSc Marcelline Goyen, BSc is a Registered Dermal Therapist, professional educator, and author specializing in the complex mechanics of the skin-gut axis. With over two decades of clinical experience, she is recognized as a pioneer and authority in understanding the skin-gut-brain connection. To make her specialized knowledge more widely accessible, her expertise has culminated in the publication of two books, which have since become fundamental literature for holistic skin rehabilitation. Alongside her writing, she shares her insights globally through masterclasses and webinars. Discover more about her books and clinical vision at www.skin-gut-axis.com.
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