Fatigue Management in Crohn's Disease

The European Crohn's and Colitis Organisation recommends that subclinical inflammation remains the leading cause of fatigue in Crohn's disease patients, as 30-50% of patients with inactive Crohn's disease still experience fatigue, and disease activity is a strong predictor of fatigue severity 1, 2
Checking inflammatory markers (CRP, ESR) and fecal calprotectin is essential to assess for subclinical disease activity, as raised inflammatory markers without bowel symptoms are reversible causes of fatigue 3, 4

Nutritional Deficiencies from Malabsorption

The American Gastroenterological Association suggests that iron deficiency with or without anemia is the most common and easily correctable cause of fatigue in Crohn's disease patients—complete blood count, serum ferritin, serum iron, and transferrin saturation should be checked 1, 2
Vitamin B12 deficiency occurs frequently in Crohn's disease due to terminal ileal involvement or resection—serum B12 levels should be measured 1, 2

Female gender and polypharmacy, particularly with neuropsychiatric drugs, are risk factors for medication-related fatigue in IBD, according to the European Crohn's and Colitis Organisation 1, 2

The American Psychological Association states that depression and anxiety are highly prevalent in IBD and are associated with fatigue, poor sleep quality, and poor health-related quality of life 1, 2
Sleep disturbances are common in IBD and correlate strongly with fatigue severity in both active and inactive disease, as reported by the National Sleep Foundation 1, 2, 6

Hypothyroidism is a common reversible cause of fatigue in young women—TSH and free T4 should be measured, according to the American Thyroid Association 5, 6

Initial laboratory assessment should include complete blood count with differential, iron studies, inflammatory markers, vitamin B12 and folate levels, and 25-OH vitamin D level, as recommended by the American Gastroenterological Association 5

The European Crohn's and Colitis Organisation recommends treating iron deficiency and anemia with appropriate supplementation, and supplementing vitamin D if deficient 1, 2, 6
Optimizing Crohn's disease therapy to achieve deeper remission can reduce symptoms of fatigue, as anti-TNF therapy has been shown to reduce symptoms of fatigue, according to the American Gastroenterological Association 1, 2
Initiating psychological interventions, including cognitive behavioral therapy or mindfulness-based programs, can show benefit for persistent fatigue, as reported by the American Psychological Association 6
Graded exercise programs have demonstrated positive effects on physical fatigue in IBD, according to the European Crohn's and Colitis Organisation 1, 2, 6