Could It Be Celiac Disease? What Many Families Don't Realize

Celiac disease is far more common and far more misunderstood than most people think. About 1% of the population has celiac disease, yet an estimated 80% of those affected are undiagnosed. Then there are people who live for years with what’s called “silent” or non‑classical celiac disease, never realizing gluten is quietly damaging their bodies.

This is one reason celiac disease often flies under the radar. It doesn’t always look the way we expect it to.

Signs of Celiac Disease in Children

Digestive symptoms are more common in infants and children, but celiac disease doesn’t always show up as “just stomach trouble.” In kids, symptoms can affect growth, mood, learning, and overall development.

Some of the most common signs include:

• Abdominal bloating or stomach pain

• Chronic diarrhea or constipation

• Pale, foul‑smelling stools

• Nausea or vomiting

• Fatigue

• Weight loss or failure to thrive

• Short stature or delayed growth

• Delayed puberty

• Damage to tooth enamel

• Gum recession

• Iron‑deficiency anemia

Many children also experience non‑digestive symptoms, such as:

• Anxiety or depression

• Irritability

• Headaches

• ADHD or learning difficulties

• Seizures or trouble with coordination

Because these symptoms don’t always point straight to the gut, celiac disease in children is often missed or misdiagnosed.

Celiac Disease in Adults: Not Just a Digestive Issue

Adults with celiac disease may have digestive symptoms or none. Often the symptoms are subtle, confusing, or unrelated to digestion.

Common adult symptoms include:

• Abdominal pain, bloating, or gas

• Chronic diarrhea or constipation

• Fatigue

• Brain fog or cognitive difficulties

• Depression or anxiety

• Headaches or migraines

• Iron‑deficiency anemia

• Joint pain

Other possible signs include:

• Mouth ulcers or frequent canker sores

• Missed periods or fertility issues

• Osteoporosis or bone pain

• Tingling or numbness in the hands or feet (peripheral neuropathy)

• An itchy, blistering skin rash called dermatitis herpetiformis

Different Types of Celiac Disease

Not everyone with celiac disease looks the same. Doctors often describe it in a few different ways:

Classical celiac disease shows clear signs of malabsorption. Some examples would be chronic diarrhea, fatty stools, and weight loss (or poor growth in children).

Non‑classical celiac disease can include mild digestive issues or symptoms that seem completely unrelated like anemia, chronic fatigue, migraines, nerve pain, low bone density, vitamin deficiencies, liver enzyme elevations, or mood disorders.  In other people, gluten contamination may present as an intense, blistery skin rash often on the knees, elbows, and hairline called dermatitis herpetiformis (DH).

Silent (asymptomatic) celiac disease means there are no obvious symptoms at all. Even with the immune system still damaging the lining of the small intestine. Interestingly, many people with silent celiac disease report feeling better once they adopt a strict gluten‑free diet even though they didn’t realize they felt unwell before.

Why Awareness Matters

Left untreated, celiac disease can lead to long‑term complications, even in people who feel “fine.” If you or your child is dealing with unexplained symptoms, especially ongoing fatigue, anemia, digestive problems, or growth concerns it may be worth talking to a healthcare provider about celiac testing before removing gluten from the diet.

Sometimes, listening to the quieter signs can make all the difference.