What to watch with Fertility Check | Fruchtbarkeits-Test and fertility?

A fertility check (e.g., MyBody-X) typically analyzes SNPs in genes like ESR1, TSHR, AR, and SHBG, linked to hormone regulation, thyroid function, and sex hormones. However, evidence for individual markers is mixed: large GWAS (e.g., UK Biobank, 425k participants) show sex-specific testosterone associations with diabetes and PCOS, but effect sizes for single SNPs are small. Clinical predictive power remains limited. Moreover, 'adrenal fatigue' is rejected by endocrinology – a reputable test should avoid it. Be aware that such tests do not replace medical diagnosis; they serve as orientation. For fertility, lifestyle factors (age, weight, smoking) and clinical workup (hormone panel, semen analysis) are far more decisive. A DNA test can at best suggest genetic predispositions, not current fertility status.