ist weicher stuhlgang normal — which blood markers matter?

Soft stool can be normal for many people, especially due to dietary changes, stress, or increased fluid intake. However, if it persists or is accompanied by symptoms like abdominal pain, weight loss, or blood, certain blood markers may help identify underlying issues. Relevant markers include: C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) for inflammation, fecal calprotectin (stool test) for inflammatory bowel disease, celiac serology (tTG-IgA), thyroid function (TSH, fT3, fT4) for hyperthyroidism, and iron status (ferritin, transferrin) for malabsorption. A DNA or microbiome test alone is insufficient to determine the cause. Evidence for these blood markers is moderate – they help rule out organic disease, but many cases are functional. Caution: Do not self-diagnose; medical evaluation is essential.