Can Stuhlprobe help with Fruchtbarkeit?

Whether a stool sample (microbiome test) can help with fertility is not yet clearly established by science. There is mechanistic evidence that the gut microbiome may influence fertility through inflammation, hormone metabolism (e.g., estrogen recycling), and nutrient absorption. However, no robust clinical studies have validated stool tests for diagnosing or treating fertility issues. Most direct-to-consumer microbiome tests lack regulatory approval for this purpose. They may provide general insights but should not replace a comprehensive fertility workup by a specialist. Evidence: mechanistic/hypothetical, not clinically proven. Caveat: Do not base fertility decisions solely on a stool test.