What can the Fertility Check tell you — and what not?

A fertility check (e.g., DNA test or hormone panel) can identify certain factors that may influence fertility, such as common variants in FSH receptor, MTHFR, or AMH, as well as hormone levels like AMH, FSH, and estradiol. However, the predictive power and clinical utility are limited. Most fertility issues are multifactorial: lifestyle, age, weight, stress, thyroid function, and environmental factors play a larger role than single gene variants. A genetic test cannot diagnose infertility, guarantee pregnancy, or replace a medical workup. Many offered markers have weak or conflicting evidence (e.g., MTHFR for fertility). Moreover, reference ranges are often not standardized. A hormone test from saliva or blood can provide rough insights but is subject to cycle-dependent fluctuations. In summary, the check can serve as a general orientation but not as a basis for medical decisions. For serious fertility concerns, a consultation with a reproductive specialist is essential.