What should I know about wie hangen darm und blase zusammen?

The gut–bladder axis describes the bidirectional communication between the gastrointestinal and urinary systems via the microbiome, immune mediators, and pelvic floor structures. Gut bacteria produce metabolites (e.g., short-chain fatty acids) that enter circulation and influence bladder motility and mucosal immunity. Dysbiosis is linked to recurrent urinary tract infections (UTIs) and overactive bladder. Constipation can mechanically impair bladder emptying. A key genetic link is the FUT2 gene (rs602662), which determines secretor status. The A allele reduces mucosal glycan expression, altering the gut microbiome and increasing UTI susceptibility. However, the effect is modest (OR ~1.3–1.5) and lifestyle factors (hydration, diet, hygiene) are more impactful. MyBody-X DNA tests can detect this variant, but the clinical utility is limited – no RCTs show that genotype-guided prevention outperforms standard advice. Evidence is based on GWAS and mechanistic studies (human-moderate). For persistent bladder symptoms, medical evaluation is essential to rule out structural or infectious causes. Caveat: DTC genetic tests are not diagnostic and should not replace professional medical advice.