What do LH and FSH numbers mean on a pre-TRT lab report?

Luteinizing hormone (LH) and follicle-stimulating hormone (FSH) are pituitary hormones that signal the testes to produce testosterone and support reproductive function. When evaluating low testosterone, checking these gonadotropins helps clinicians distinguish between primary hypogonadism originating in the testes and secondary hypogonadism linked to pituitary signaling. Elevated LH and FSH with low testosterone point toward testicular issues, while low or normal levels often suggest a central signaling problem. Discussing these specific patterns with your licensed MD, NP, or PA is essential for an accurate diagnosis and appropriate care plan.