MUSC Highlights Why Understanding Celiac Diagnosis Still Matters in 2026

The Medical University of South Carolina breaks down celiac disease diagnosis and long-term health effects. Here's what it means for our community.

When a major academic medical center like the Medical University of South Carolina (MUSC) publishes guidance on celiac disease, it signals something important: the medical community is paying attention. And for those of us navigating this condition daily—whether for ourselves or our children—that attention matters more than you might think.

MUSC’s recent overview on celiac disease diagnosis and its health effects comes at a time when awareness is growing but understanding still lags behind. Let’s break down why this kind of institutional education matters and what it means for our celiac community.

Why Academic Medical Centers Speaking Up Is a Big Deal

Here’s the reality: celiac disease affects approximately 1 in 100 people worldwide, yet studies consistently show that the majority of those with celiac remain undiagnosed. Some estimates suggest up to 83% of people with celiac disease don’t know they have it.

When institutions like MUSC—a respected research university and healthcare system—take the time to educate the public about celiac disease, it does several things:

  1. It legitimizes the condition in a healthcare landscape where many patients still report being dismissed or misdiagnosed
  2. It educates other healthcare providers who may encounter celiac symptoms but not recognize them
  3. It reaches patients who may be suffering without answers

For families like mine, where Azi was fortunate to get a diagnosis, this kind of visibility helps create a world where his condition is understood rather than questioned.

The Diagnosis Journey: What MUSC Wants People to Know

The diagnostic process for celiac disease typically involves two key steps, and understanding them matters—especially if you suspect celiac disease in yourself or a family member.

Blood Testing: The First Line of Investigation

The initial screening usually involves blood tests that look for specific antibodies. The most common is the tissue transglutaminase IgA (tTG-IgA) test, which has a sensitivity of about 93-98% in detecting celiac disease. Total IgA levels are also typically checked, since about 2-3% of people with celiac have IgA deficiency, which can cause false negatives.

Here’s what many people don’t realize: you must be eating gluten for these tests to work. If you’ve already gone gluten-free before testing, your antibody levels may have dropped, leading to inaccurate results. This is one of the most common issues we hear about in the celiac community—people who went gluten-free, felt better, but now can’t get a definitive diagnosis without doing a gluten challenge.

Endoscopy with Biopsy: The Gold Standard

For most patients with positive blood work, the next step is an upper endoscopy with small intestinal biopsy. The gastroenterologist looks for villous atrophy—damage to the small, finger-like projections in the small intestine that absorb nutrients.

The biopsy remains the gold standard for diagnosis in most cases, though there’s growing discussion in the medical community about whether certain patients (particularly children with very high antibody levels and genetic markers) might be diagnosed without it. This is an area where guidelines continue to evolve, and it’s worth discussing with your gastroenterologist.

The Effects That Extend Beyond Digestion

One of the most important aspects of celiac disease education is understanding that this isn’t “just” a digestive condition. MUSC’s emphasis on the broader effects of celiac disease reflects what the research has shown for years—and what many of us have experienced firsthand.

Nutrient Deficiencies and Their Cascade

When the small intestine is damaged, nutrient absorption suffers. Common deficiencies include:

  • Iron (leading to anemia and fatigue)
  • Calcium and Vitamin D (affecting bone health)
  • B vitamins (impacting energy and neurological function)
  • Zinc (affecting immune function and healing)

These deficiencies can manifest in ways that don’t obviously point to a gut problem—fatigue, brain fog, joint pain, skin issues, even anxiety and depression. This is partly why the average time to diagnosis has historically been so long; patients often see multiple specialists before anyone considers celiac disease.

Long-Term Health Considerations

Untreated or poorly managed celiac disease has been associated with increased risks of:

  • Osteoporosis and bone fractures
  • Other autoimmune conditions (thyroid disease, Type 1 diabetes)
  • Certain intestinal cancers (though risk decreases significantly with strict gluten-free diet adherence)
  • Fertility issues
  • Neurological complications

This isn’t meant to frighten anyone—with proper diagnosis and a strict gluten-free diet, most people with celiac disease can heal their intestines and significantly reduce these risks. But it underscores why diagnosis matters and why “a little gluten” isn’t harmless for those of us with this condition.

What This Means for Families Managing Celiac

When I see a major medical center putting resources into celiac education, I think about all the families still searching for answers. I think about the parents who know something is wrong with their child but keep being told it’s “just” anxiety, or picky eating, or growing pains.

For Those Seeking Diagnosis

If you or your child has unexplained symptoms—whether GI-related or not—and celiac disease hasn’t been ruled out, ask for the blood test. Be specific: request the tTG-IgA and total IgA. If your healthcare provider isn’t familiar with celiac testing, resources from institutions like MUSC can help guide that conversation.

And crucially: don’t go gluten-free before testing. I know this is hard when you’re suffering and you’ve read that gluten-free helps. But accurate diagnosis opens doors to proper monitoring, insurance coverage, and a clear treatment path.

For Those Already Diagnosed

Education from medical centers serves as a reminder that follow-up care matters. Celiac disease isn’t “one and done” with diagnosis. Regular check-ins with your healthcare provider, periodic blood work to ensure antibodies are decreasing, and monitoring for nutrient deficiencies are all part of ongoing management.

For kids like Azi, this also means age-appropriate conversations about their health as they grow—building the knowledge they’ll need to manage their own care as adults.

The Bigger Picture: Awareness Drives Change

Every time a respected institution publishes guidance on celiac disease, it adds to the collective awareness that slowly shifts how this condition is perceived and treated. It’s why we see more accurate food labeling, better restaurant awareness about cross-contact, and improved school accommodations.

Progress is incremental. But it’s real.

For those of us in the celiac community, our job is to keep sharing our experiences, keep asking questions, and keep advocating for ourselves and our kids. When medical centers speak up, they’re giving us stronger ground to stand on.


If you suspect you or a family member may have celiac disease, please consult with a gastroenterologist or your healthcare provider for proper evaluation and testing. This article is for informational purposes and does not constitute medical advice.

References

  • Medical University of South Carolina. (2026). “Celiac disease: What it is, how it’s diagnosed and the effects it can have.” Retrieved from MUSC News

  • Celiac Disease Foundation. “Screening and Diagnosis.” celiac.org

  • Rubio-Tapia, A., et al. (2023). “ACG Clinical Guidelines: Diagnosis and Management of Celiac Disease.” American Journal of Gastroenterology.

Medical Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your gastroenterologist or healthcare provider about your specific condition. Celiac disease management should be guided by your medical team.

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