Fertility Check | Fruchtbarkeits-Test: what are common causes?

Common causes of fertility issues are multifactorial: age (especially in women over 35), hormonal imbalances (e.g., PCOS, thyroid dysfunction), structural problems (e.g., blocked fallopian tubes, endometriosis), semen quality (e.g., low sperm count, motility), and lifestyle factors (smoking, obesity, stress). Genetic factors like MTHFR variants can affect folate metabolism, but their impact on fertility is generally small and not diagnostic on their own. The provided context does not contain specific data on fertility tests or their causes. Therefore, the evidence for direct genetic causes from this material is unclear. A fertility check should always be medically supervised and typically includes hormone panels, ultrasound, and semen analysis – not just DNA tests.