Is Testosteron Test useful for fertility?

Whether a testosterone test is useful for fertility depends on the context. In men with infertility, measuring total and free testosterone can help identify hypogonadism, which may impair sperm production. However, a single testosterone level is insufficient; a full fertility workup includes semen analysis, LH, FSH, prolactin, and sometimes genetic testing. Low testosterone can also result from lifestyle factors (obesity, poor sleep) rather than primary gonadal failure. In women, testosterone plays a minor role in fertility; estradiol, progesterone, and AMH are more relevant. The evidence for a standalone testosterone test as a fertility marker is limited. Consumer tests (e.g., MyBody-X) may offer a screening snapshot but are not diagnostic. Caveat: Results require medical interpretation; self-diagnosis can lead to unnecessary worry or false reassurance. Recommendation: Consult a specialist (andrologist/gynecologist) for a comprehensive fertility assessment.