Celiac Disease

Populations and Risk Factors

Highly hereditary. Strongly associated with HLA-DQ2 (90-95% of cases) or HLA-DQ8 alleles
Onset can occur in infancy (after gluten introduction) or be triggered in adulthood by physiologic stress (surgery, pregnancy, trauma, infection)
Women are diagnosed 2-3 times more often than men
Frequently co-occurs with other autoimmune disorders: type 1 diabetes, autoimmune thyroid disease, Addison disease, lupus, rheumatoid arthritis, Sjogren syndrome
First-degree relatives have a 10-15% prevalence
Untreated cases carry significantly higher risk of intestinal lymphoma (enteropathy-associated T-cell lymphoma) and small bowel adenocarcinoma
Associated with increased risk of miscarriage and neural tube defects due to impaired folic acid absorption
Down syndrome and Turner syndrome carry increased celiac prevalence

Gluten trigger: Gliadin peptides are incompletely digested and cross the intestinal epithelium. Tissue transglutaminase (tTG) deamidates gliadin, increasing its immunogenicity.
Immune response: Deamidated gliadin is presented by HLA-DQ2/DQ8 on antigen-presenting cells to CD4+ T lymphocytes, triggering an inflammatory cascade. Cytotoxic intraepithelial lymphocytes attack enterocytes.
Villous atrophy: Repeated immune attacks flatten and destroy intestinal villi. Crypts hyperprophy in compensation. The mucosal surface area available for absorption decreases dramatically.
Malabsorption consequences: Damage is most severe in the duodenum and proximal jejunum, compromising iron and folic acid uptake first. Progressive involvement impairs absorption of calcium, vitamin D, vitamin B12, fat-soluble vitamins (A, D, E, K), and macronutrients (fat, protein, carbohydrate).
Dermatitis herpetiformis: IgA deposits in the dermal papillae cause a pruritic, vesicular skin eruption — the cutaneous manifestation of celiac disease. It occurs in 15-25% of celiac patients.
Recovery potential: Complete villous rebuilding is possible with strict, lifelong gluten-free diet over months to years.

GI symptoms: Bloating, gas, chronic diarrhea, pale foul-smelling stools (steatorrhea), abdominal cramping, nausea
Dermatitis herpetiformis: Symmetrical, intensely itchy rash of grouped vesicles and papules on extensor surfaces (elbows, knees, buttocks, scalp)
Fatigue and weakness: Often profound. Secondary to iron deficiency anemia and general malabsorption
Bone disease: Bone pain, increased fracture risk, osteoporosis or osteopenia (calcium and vitamin D malabsorption). Short stature in children
Neurological: Peripheral neuropathy, ataxia, irritability, seizure risk (vitamin B12 and folate deficiency)
Cognitive: "Brain fog," poor concentration, impaired memory
Reproductive: Infertility, recurrent miscarriage, delayed menarche
Weight loss: Often unexplained. Occasionally weight gain due to carbohydrate craving
Dental enamel defects: Pitting and discoloration of permanent teeth (childhood onset)

Dermatitis herpetiformis with undiagnosed GI symptoms: Suggests undiagnosed celiac — refer for serologic testing
Progressive neurological symptoms (ataxia, peripheral neuropathy) in a client with GI complaints — requires medical evaluation
Unexplained weight loss with chronic diarrhea — massage may temporarily relieve digestive discomfort, delaying important medical diagnosis. Encourage medical evaluation
Refractory symptoms despite gluten-free diet — may indicate refractory celiac disease or T-cell lymphoma. Urgent referral

Abdominal work: Conduct conservatively with constant client feedback — the intestinal tract may be actively inflamed. Light to moderate pressure only
Lubricant safety: Avoid lubricants containing wheat germ oil or other grain-derived ingredients (topical gluten sensitivity; client reassurance is important regardless of debated evidence)
Dermatitis herpetiformis: Active vesicular lesions are a local contraindication — do not massage over open or crusted lesions. Intact skin between lesions can be treated with care
Diagnostic caution: Massage may temporarily relieve digestive pain, potentially delaying medical diagnosis in undiagnosed clients. Refer clients with persistent undiagnosed GI symptoms for medical evaluation
Secondary complications affect treatment: Iron deficiency anemia causes fatigue (shorter sessions may be needed). Osteoporosis requires lighter pressure over the spine and ribs. Peripheral neuropathy impairs sensation (client feedback unreliable for pressure in affected areas)
Malnutrition and tissue quality: Clients with active malabsorption may have fragile, dry skin and poor tissue resilience — adjust pressure accordingly

Category: A7 Systemic Conditions (Gastrointestinal/Autoimmune)
Dermatitis herpetiformis as a local contraindication is a high-yield exam point
Recognize the autoimmune cluster pattern: celiac often coexists with type 1 diabetes, thyroid disease, and Addison disease
Malabsorption consequences (anemia, osteoporosis, peripheral neuropathy) affect pressure selection and treatment planning
Celiac disease increases malignancy risk (intestinal lymphoma) — persistent symptoms despite diet compliance warrants referral
Lubricant ingredient awareness (grain-derived products) may appear as a practice-based question

Celiac disease is an immune-mediated villous atrophy of the small intestine triggered by gluten ingestion in genetically predisposed individuals
Dermatitis herpetiformis (symmetrical vesicular rash on elbows, knees, buttocks) is a local contraindication for massage
Avoid lubricants containing wheat germ oil or other grain-based ingredients
Massage may temporarily relieve digestive pain, potentially delaying important medical diagnosis — encourage medical evaluation for persistent GI symptoms
Secondary complications (anemia, osteoporosis, peripheral neuropathy) directly affect treatment pressure and technique selection
Often coexists with other autoimmune conditions — screen intake forms for autoimmune cluster